v0.11.2

Oscar v0.11.2

Diff since v0.11.1

Closed issues:

• Marry different implementations of the Chow ring (#1475)

Merged pull requests:

• start GR-algebras (#1774) (@tthsqe12)
• Bump to 0.11.2-DEV (#1776) (@thofma)
• save: don't return number of bytes written (#1777) (@benlorenz)
• FGLM Gröbner conversion algorithm (#1782) (@ederc)
• Skip nondeterministic tests (#1784) (@thofma)
• Version 0.11.2 (#1786) (@thofma)

v0.11.1

Oscar v0.11.1

Diff since v0.11.0

Closed issues:

• Reconcile DEVELOPMENT.md with dev docs (#1337)
• groups atlas error without wget or GAP io (#1516)
• visualize leads to Polymake exiting ("crashing") the Julia session when used in WSL (#1615)
• Tests fail in test/PolyhedralGeometry/timing.jl (#1670)
• ToricVarietiies: Shuffling weights for weighted projective space changes the space (#1687)
• Extend documentation for schemes (#1689)
• Oscar.build_doc(;doctest=:fix) does not fix doctests in .md files (#1708)
• Precompilation warnings caused by changes in Hecke (?) (#1752)

Merged pull requests:

• Gröbner Bases: Changes normal form to take a monomial ordering kwarg (#1654) (@RafaelDavidMohr)
• Document more groups files (#1661) (@CameronBraunstein)
• Finitely Presented Algebras, not 'Represented' (#1662) (@fingolfin)
• More consistent spelling for OSCAR (#1666) (@fingolfin)
• Prepare for GAP 4.12 (#1671) (@fingolfin)
• ToricVarieties: Extend Chow ring to non-complete varieties (#1684) (@HereAround)
• Improve schemes documentation (#1691) (@HechtiDerLachs)
• ToricVarieties: Workaround for bug in polymake in weighted_projective… (#1695) (@lkastner)
• New terms etc (#1696) (@tthsqe12)
• Singular locus (#1700) (@afkafkafk13)
• Rename k point coordinates (#1701) (@afkafkafk13)
• Update compat for DocStringExtensions 0.9 (#1703) (@YingboMa)
• Intro to docu on Gröbner bases (#1705) (@wdecker)
• Fix warning about method being redefined (#1707) (@fingolfin)
• Fix typo in signature (#1709) (@thofma)
• properly fix typo in nrows(subarray) (#1710) (@benlorenz)
• make the Rubik's cube example run in Oscar (#1711) (@ThomasBreuer)
• changed transitivity (#1713) (@ThomasBreuer)
• Convert most @repl blocks to jldoctest (#1721) (@fingolfin)
• new tail too (#1722) (@tthsqe12)
• Fix warnings; remove superfluous function declarations (#1723) (@fingolfin)
• towards Wolfram's new ideas (#1724) (@fieker)
• better support for non-simples in Qab (#1725) (@fieker)
• add comments from Lars (#1726) (@fieker)
• add (and use) gcd_with_cofactor in ref_ff (#1727) (@fieker)
• remove norm_equatin in fin. field.: fixed in Hecke (#1728) (@fieker)
• various: factoring, ideal, relative (#1729) (@fieker)
• README.md: update documentation links (#1731) (@fingolfin)
• Examples w.r.t. PR #1722 (#1733) (@wdecker)
• Weil divisors (#1734) (@HechtiDerLachs)
• Fix saturated ideal for quotient rings. (#1735) (@HechtiDerLachs)
• TropicalVarieties: Use pseudo_inv instead of adjoint (#1736) (@lkastner)
• Tweak some docstrings (#1737) (@fingolfin)
• Applying naming conventions for the schemes (#1738) (@HechtiDerLachs)
• Add docs on complex algorithms (#1740) (@lkastner)
• Add naive version for rational solutions of zero/one-dimensional ideals (#1748) (@fieker)
• Cleanup bibliography (#1749) (@HereAround)
• Decrease allocations in elements (#1750) (@SyxP)
• Add letters() and syllables() for FPGroupElem (#1751) (@fingolfin)
• Remove some methods that moved to Hecke in 0.16.* (#1753) (@thofma)
• Make elements even faster (#1754) (@fingolfin)
• Remove obsolete benchmarks (#1755) (@fingolfin)
• (re-)enable some more tests (#1756) (@benlorenz)
• Add more type assertions and wrappers to GAP code (#1758) (@fingolfin)
• More GAP tweaks (#1759) (@fingolfin)
• More docu on standard bases (#1760) (@wdecker)
• add vdim(::MPolyIdeal) (#1761) (@tthsqe12)
• added tests for some conversions (#1762) (@ThomasBreuer)
• A few complements to recent PRs (#1763) (@wdecker)
• add vdimto docu (#1766) (@wdecker)
• Make doctests part of Pkg.test("Oscar") (#1768) (@thofma)
• tests: fix global state for doctests (#1769) (@benlorenz)
• ToricVarieties: Bugfix in is_empty for closed subvarieties (#1771) (@HereAround)
• Bump to 0.11.1 (#1775) (@thofma)

v0.11.0

Oscar v0.11.0

Diff since v0.10.2

Closed issues:

• Detect whether build dependencies are present, error out with helpful message if not (#83)
• Groups: the trivial group should be considered as a p-group (#121)
• Group: issubgroup convention (#163)
• fraction in quotient ring (#264)
• Do not export SymmetricGroup and some other stuff from AbstractAlgebra (#353)
• Problem with sqrtmod with powers of 2 (#437)
• functions related to hilbert_polynomial use unsafe Int arithmetic and an odd mix of fmpz/fmpq arithmetic (#573)
• singular_module (#682)
• Add Combinatorics chapters to manual (with graphs, simplicial complexes, etc.) and fix reference entries (#753)
• Coerce coefficients into coefficient ring when defining polynomials (#766)
• Singular ring coercion riddle (#975)
• trivial groups are non-trivial...`` (#980)
• Allow *(::Vector/Matrix{fmpq}, ::fmpq/fmpz), //(::Vector/Matrix{fmpq}, ::fmpq/fmpz) and *(::Vector/Matrix{fmpz}, ::fmpz) (#1088)
• CI test failure in Julia nightly due to Unicode changes (#1140)
• ToricVarieties: Interplay with polyhedral geometry and performance (#1258)
• Inconsistent use of is and is_ in function names (#1265)
• Don't export SymmetricGroup resp. replace it with an alias for symmetric_group (#1418)
• Documentation: Explain how to execute the doctests (#1504)
• ideal membership crashes for MPolyQuoIdeal in 'fake' quotient rings Q = R/(0) (#1530)
• Subgroup of automorphism group hanging(?) (#1531)
• divrem goes into overflow for quotient rings (#1534)
• Intersection of submodules makes trouble (#1546)
• Something goes wrong in the submodule constructor (#1547)
• automorphism (groups) (#1556)
• Bug in affine_cone (#1580)
• Coerce element from subgroup (#1599)
• quick clarification on bug in induced_ring_ordering (#1643)
• Implement weighted projective space as toric variety, scheme and possibly more (#1644)
• Should affine schemes have an ambient space. (#1664)
• ambiguous evaluate (#1668)
• Crash in PolyhedralGeometry (caused by OpenMP code?) (#1674)
• solve_mixed should check arguments for consistency (#1678)

Merged pull requests:

• deal (badly) with non-trivial Schur index (#1435) (@fieker)
• ToricVarieties: Chow ring (#1449) (@HereAround)
• ToricVarieties: Toric morphisms (#1460) (@HereAround)
• msolve -> AlgebraicSolving (#1474) (@ederc)
• docu to (most of) #1511 (#1518) (@wdecker)
• smaller powers in random loc elems (#1519) (@tthsqe12)
• Orthogonal groups via orthogonal decomposition (#1520) (@simonbrandhorst)
• update Singular.jl to 0.13 (#1521) (@tthsqe12)
• Fix task in direct_product and type in homology (#1522) (@AlexD97)
• Remove duplicate method for PBW algebras (#1523) (@thofma)
• Extend Docu w.r.t. modules (commutative); PBW-algebras (#1524) (@wdecker)
• Serialize QuadraticSpace and ZLat (#1525) (@simonbrandhorst)
• Adv/serialize power series (#1526) (@antonydellavecchia)
• Extending docu on PBW-algebras as template for @tthsqe12 (#1527) (@wdecker)
• change to left_ideal and two_sided_ideal in pwb_algebra (#1528) (@tthsqe12)
• Improving docu w.r.t. module morphisms (#1529) (@wdecker)
• provide check argument for sub (#1532) (@ThomasBreuer)
• allow an MPolyRing in place of variables in ordering constructors (#1533) (@tthsqe12)
• add opposite_ordering (#1535) (@tthsqe12)
• Spec retying (#1537) (@HechtiDerLachs)
• show a character table optionally with the degrees of the character fields (#1539) (@ThomasBreuer)
• pbw_algebra: add opposite_algebra and right ideals (#1541) (@tthsqe12)
• Type correction, start docu on chain complexes (#1542) (@wdecker)
• Hilbert series (#1543) (@HechtiDerLachs)
• WIP: Toric varieties and covered schemes (#1544) (@HechtiDerLachs)
• Some improvements to UngradedModules.jl (#1545) (@AlexD97)
• Some tweaks related to check (#1548) (@fingolfin)
• Resolve clash between delpezzo and del_pezzo (#1549) (@fingolfin)
• Add epimorphism_from_free_group (#1550) (@fingolfin)
• calling polymake grassman plucker ideal from Oscar (#1551) (@antonydellavecchia)
• Fix warnings (#1552) (@fingolfin)
• Remove strange 'vertices' method (#1553) (@fingolfin)
• more on modules in docmore on modules in docu (#1554) (@wdecker)
• Fix #1546 (#1555) (@AlexD97)
• Tiny allocations (#1558) (@alexej-jordan)
• added atlas_subgroup (#1559) (@ThomasBreuer)
• Small bugfix in the localizations. (#1560) (@HechtiDerLachs)
• Projective modules (#1561) (@HechtiDerLachs)
• Resolve issues with automorphisms and Graphs and more general things (#1565) (@lkastner)
• DevDocs: Mention how to run doctests (#1566) (@lkastner)
• docs: mutable pitfalls (#1568) (@tthsqe12)
• Adv/fix tuple serialization (#1569) (@antonydellavecchia)
• Fix syntax error in the documentation (#1570) (@fingolfin)
• Fixes for intersections and coverings (#1571) (@simonbrandhorst)
• Add docstrings for build_doc and test_module (#1572) (@lkastner)
• Function fields for irreducible varieties (#1573) (@HechtiDerLachs)
• Add is_pgroup_with_prime, prime_pgroup (#1574) (@fingolfin)
• Tweak alternating_group and symmetric_group (#1575) (@fingolfin)
• Make @registerSerializationType more broadly applicable (#1576) (@fingolfin)
• Factor out some common code from matrix group constructors (#1577) (@fingolfin)
• Change some group constructors to accept fmpz, PosInf (#1578) (@fingolfin)
• Rename homogeneous_poly_ring to ambient_ring (#1579) (@simonbrandhorst)
• Extended docu for PBW-algebras following PR #1541 (#1581) (@wdecker)
• Tests for AffineSchemes (#1582) (@simonbrandhorst)
• Some test for #1530 (#1583) (@thofma)
• Relations of fundamental invariants (#1584) (@joschmitt)
• Fix 1580 (#1586) (@HechtiDerLachs)
• Tests for SpecOpen and rename restriction to restrict (#1588) (@simonbrandhorst)
• Prepare for changes in shortest_vectors (#1589) (@thofma)
• Untangle intro for new developers (#1590) (@lkastner)
• Better pbw ideals arith (#1591) (@tthsqe12)
• Modulus handling (#1593) (@afkafkafk13)
• Automorphism groups for polytopes (#1594) (@lkastner)
• Ideal gens merge (#1595) (@AlexD97)
• Some docu text to prepare for further discussions on elimination in P… (#1596) (@wdecker)
• bug in issubset for right ideals (#1598) (@tthsqe12)
• Change most uses of GAP.julia_to_gap to GAP.Obj (#1600) (@fingolfin)
• Examples in Docu following PR #1591 (#1601) (@wdecker)
• Header files for schemes (#1602) (@HechtiDerLachs)
• compute the Schur index via a GAP function (#1603) (@ThomasBreuer)
• Add documentation for Integer Lattices (#1604) (@simonbrandhorst)
• Allow coercion of group elements to new parents (#1605) (@fingolfin)
• FAQ entry for gnu parallel error (#1606) (@benlorenz)
• replace is_canonically_isomorphic by == and some Dicts by IdDicts (#1608) (@simonbrandhorst)
• PolyhedralGeometry: Add mixed integer linear programs (MILP) (#1609) (@lkastner)
• Add a test for fiber product (#1610) (@simonbrandhorst)
• Tests and cleanup for projective and covered schemes (#1611) (@simonbrandhorst)
• Rewrite docu as template for cleaning up orderings.jl (#1612) (@wdecker)
• Some tests and cleanup for glueings. (#1613) (@HechtiDerLachs)
• CI: update to v3 of actions/checkout (#1616) (@fingolfin)
• Use the coefficient map in _check_imgs_quo (#1620) (@joschmitt)
• pbw_algbra: left_ideal eliminate (#1621) (@tthsqe12)
• switch off GAP Info messages earlier (#1622) (@ThomasBreuer)
• Tweak Hilbert series code (#1624) (@fingolfin)
• Singularities (#1625) (@afkafkafk13)
• More cleanup and tests (#1626) (@HechtiDerLachs)
• More orderings fixes (#1627) (@tthsqe12)
• added orbit_representatives_and_stabilizers (#1628) (@ThomasBreuer)
• Revert "Temporarily disable printing test for julia master (#1156)" (#1629) (@fingolfin)
• WIP docu adjustments to PR #1627 (#1631) (@wdecker)
• Cleanup and tests for covered schemes. (#1632) (@HechtiDerLachs)
• Sheaves on covered schemes (#1634) (@HechtiDerLachs)
• cmp for MPolyElem monomials (#1635) (@tthsqe12)
• Reduce allocations in Polyhedral Geometry (#1637) (@alexej-jordan)
• Implement the check for being zero divisors for affine algebras. (#1638) (@HechtiDerLachs)
• fixed grasmann typo (#1639) (@antonydellavecchia)
• add module orderings to docu (#1640) (@wdecker)
• Pbw ideal eliminate finish (#1641) (@tthsqe12)
• Add /docs/fourtitwo.json to gitignore (#1642) (@HereAround)
• complete module term orderings (#1645) (@tthsqe12)
• ToricVarieties: Implement weighted projective space (#1646) (@HereAround)
• Examples for elimination in PBW-algebras (#1647) (@wdecker)
• pbw_algebra: fix bug in two sided elimination (#1648) (@tthsqe12)
• ToricVarieties: Further improvements (#1650) (@HereAround)
• Migration of affine schemes (#1652) (@HereAround)
• Ideal sheaves -- once again (#1653) (@HechtiDerLachs)
• Standard basis fixes (#1655) (@ederc)
• Prevent tests from polluting git dir with fourtitwo.json files (#1656) (@fingolfin)
• Fix overflows and type stability in hilbert_* (#1660) (@fingolfin)
• Fix typos found with codespell (#1665) (@fingolfin)
• Better type stability for MPolyQuo (#1667) (@fingolfin)
• make OSCAR's evaluate a bit more specific (#1673) (@tthsqe12)
• ToricVarieties: More improvements (#1676) (@HereAround)
• Fix coercion TorQuadModMor -> AutomorphismGroupElem{TorQuadMod} (#1677) (@StevellM)
• PolyhedralGeometry: solve_mixed input checks (#1679) (@lkastner)
• Second round of migration of the schemes (#1680) (@HechtiDerLachs)
• Migration of schemes part iii (#1681) (@HechtiDerLachs)
• Migration of schemes part iv (#1682) (@HechtiDerLachs)
• Introduce ambient_affine_space of an affine scheme (#1683) (@simonbrandhorst)
• added symmetrizations of group characters (#1685) (@ThomasBreuer)
• bump singular.jl to 0.14 (#1686) (@tthsqe12)
• remove ambient_closure_ideal from docs (#1690) (@simonbrandhorst)
• Remove unused type parameter (#1692) (@thofma)
• Agnostic saturated ideal and modulus (#1693) (@afkafkafk13)
• fix coordinate typo (#1698) (@CameronBraunstein)

v0.10.2

Oscar v0.10.2

Diff since v0.10.1

Closed issues:

• Bug in crt(r1,m1,r2,m2) when m1 and m2 are not relatively prime (#1479)
• bug in trace_of_frobenius (#1480)
• quadratic_twist fails on elliptic curves over GF(p) (#1492)
• Addition of ideals fails eventually when doing stuff with different orderings (#1495)

Merged pull requests:

• Alternative serialization for Vector; avoid eval for type dispatch (#1362) (@fingolfin)
• reworked intro docs (#1485) (@CameronBraunstein)
• Add more fixes and tests for ext/tor (#1494) (@AlexD97)
• Cb/alias symmetric group (#1497) (@CameronBraunstein)
• handles "+" and "*" for ideals on the Oscar side (#1498) (@ederc)
• Adv/load with parent (#1499) (@antonydellavecchia)
• Serialization of polynomials over Padics + tests (#1501) (@antonydellavecchia)
• Some language smoothing (#1502) (@wdecker)
• restructured docu on modules (#1503) (@wdecker)
• Adv/serialization type cleanup (#1506) (@antonydellavecchia)
• Various fixes in UngradedModules.jl (#1508) (@AlexD97)
• Start docu on G-algebras as template for moving Plural functionality … (#1509) (@wdecker)
• Adv/serialization tropical (#1510) (@antonydellavecchia)
• start G-Algebras (#1511) (@tthsqe12)
• fix for the automorphism group of the trivial abelian group (#1513) (@simonbrandhorst)
• Catch empty generators in isomorphic_group_over_finite_field (#1514) (@joschmitt)
• Bump to 0.10.2 (#1515) (@thofma)
• test/PolyhedralGeometry/timings on macos: restrict openmp threads and allow more time (#1517) (@benlorenz)

v0.10.1

Oscar v0.10.1

Diff since v0.10.0

Closed issues:

• Matrix group elements should act on "vectors". (#872)
• Multivariate rational function fields (#1261)
• Warning in serialization tests (#1407)
• Comparison of MPolyQuoIdeal's not correct (#1408)
• The incorrect displayed symbols in GAP online reference manual 39.7-6 CosetDecomposition. (#1409)
• Missing Base.in method for MPolyQuoIdeal (#1411)
• comparison of monomial orderings has a problem? (#1423)
• Oscar.jl/test/TropicalGeometry/initial.jl has a line that is 18 thousand characters long (#1425)
• Oscar.jl/test/TropicalGeometry/initial.jl has a line that is 18 thousand characters long (#1426)
• latest version of msolve (msolve_jll v0.2.5+0) seems to be buggy (#1431)
• Oscar.jl/test/TropicalGeometry/initial.jl fails when only a subset of the test suit is run (#1437)
• ToricVarieties: Bug in Stanley-Reisner ideal (#1440)
• random failure in Rings-conformance-tests (#1451)
• successful doctests on macos sometimes crashing on exit (#1473)
• Using F4 does not seem to correctly set the gb field of an ideal (#1481)
• F4 segfaults when exporting results back to Julia (#1484)

Merged pull requests:

• Warn in encodeType about unregistered type (#1406) (@fingolfin)
• Some improvements and polishing (#1410) (@AlexD97)
• add ideal_membership for MPolyQuoIdeal (#1413) (@tthsqe12)
• trivia... (#1414) (@fieker)
• First steps for free resolutions (#1415) (@ederc)
• Introduce standard bases for ideals (for non-global orderings). (#1416) (@HechtiDerLachs)
• bump singular version (#1417) (@tthsqe12)
• support all_atlas_group_infos (#1419) (@ThomasBreuer)
• all lifts are in singular.jl now (#1420) (@tthsqe12)
• removed a Base.:* method ... (#1421) (@ThomasBreuer)
• Adv/serializing field embeddings (#1422) (@antonydellavecchia)
• first small step in fixing the orderings (#1427) (@tthsqe12)
• Small bugfix for kernels of morphisms over localized rings. (#1428) (@HechtiDerLachs)
• Cb/update perm docs (#1429) (@CameronBraunstein)
• Msolve fixes (#1433) (@ederc)
• fixed code using names_of_fusion_sources (#1434) (@ThomasBreuer)
• Fundamental invariants (#1438) (@joschmitt)
• ToricVarieties bugfix: grading of Coxring for Hirzebruch surface wrongly set (#1439) (@HereAround)
• minimal_nonfaces: fix column number of IncidenceMatrix (#1441) (@benlorenz)
• Fix doctests for AA (#1442) (@thofma)
• Adv/cleanup polynomial serialization tests (#1443) (@antonydellavecchia)
• ToricVarieties: Extend conifold-transition example (#1444) (@HereAround)
• serialization: suppress + check warning on unknown polymake type (#1446) (@benlorenz)
• Move InvariantTheory to src (#1447) (@joschmitt)
• Fix orderings part1 (#1448) (@tthsqe12)
• added paper for later use (#1450) (@wdecker)
• missing init in product (#1453) (@tthsqe12)
• add algo parameter to galois_group(AnticNumberField) (#1454) (@fieker)
• Fix a @cite (#1456) (@fingolfin)
• singular->oscar ordering conversion (#1457) (@tthsqe12)
• renamed gap_perm to perm and removed all gap_perm references (#1458) (@CameronBraunstein)
• fixed orthogonal_sign (#1461) (@ThomasBreuer)
• docu triviadocu triviadocu triviadocu triviadocu triviadocu triviadoc… (#1462) (@wdecker)
• TropicalGeometry: removed excessive test (#1464) (@YueRen)
• fix typo(s) (#1465) (@fieker)
• test/Polyhedron: make sure output order stays the same (#1466) (@benlorenz)
• Update dependencies (#1467) (@thofma)
• moved documentation to functions (#1468) (@CameronBraunstein)
• Use AbstractAlgebra v0.27 (#1469) (@joschmitt)
• alg options for integral_basis (#1470) (@tthsqe12)
• Improve simplify; make ext/tor work again, add test (#1476) (@AlexD97)
• Adv/serialization ns field emb (#1478) (@antonydellavecchia)
• Fix for issue 1481 (#1482) (@ederc)
• added more type encodings to avoid warnings (#1483) (@antonydellavecchia)
• Adv/matrix serialization (#1486) (@antonydellavecchia)
• Fix some outdated imports (#1488) (@thofma)
• Bump depdencies and tag 0.10.1 (#1490) (@thofma)

v0.10.0

Oscar v0.10.0

Diff since v0.9.0

Closed issues:

• Serialization: add high-level save and load methods which take a Julia IO object (#1319)
• Extend invariant computation to permutation groups (#1346)
• "Error" when loading Oscar without internet connection (#1364)
• Test failure in QQAb conformance tests (#1392)
• Test failure on julia master (in GAP.jl) (#1395)

Merged pull requests:

• Minor improvements to tropical geometry code. (#1230) (@martapanizzut)
• Pr covered schemes mar22 (#1242) (@HechtiDerLachs)
• Module localizations pr may 22 (#1295) (@HechtiDerLachs)
• rearrange the code in experimental/GModule (#1309) (@ThomasBreuer)
• Unify and simplify type handling within PolyhedralGeometry (matrices) (#1321) (@alexej-jordan)
• Use Hecke.jl complexes for modules; fix direct sum (#1339) (@AlexD97)
• Don't use generic serialization automatically, add a test (#1341) (@fingolfin)
• Adv/ideal serialization (#1342) (@antonydellavecchia)
• Let Pkg sort Project.toml, to reduce diffs elsewhere (#1347) (@fingolfin)
• Remove trace(::MatrixGroupElem) (#1349) (@fingolfin)
• Make rand_pseudo(::GAPGroup) uniformly usable (#1350) (@fingolfin)
• Miscellaneous changes to the groups code (#1351) (@fingolfin)
• improvements/extensions for G-sets (#1352) (@ThomasBreuer)
• Serialization: Fix loading SimplicialComplex (#1353) (@lkastner)
• CI: don't run timing tests when JULIA_PKGEVAL is set (#1354) (@benlorenz)
• Update a few calls to deprecated functions (#1355) (@fingolfin)
• Serialize singletons; avoid redundant backref ids (#1356) (@fingolfin)
• support invariant rings of permutation groups (#1357) (@ThomasBreuer)
• Add missing import from AA (#1358) (@thofma)
• Speed up secondary invariants using ideas by Simon King (#1359) (@joschmitt)
• Tweak bib (#1360) (@fingolfin)
• Fix some constructor for number fields from abelian closure (#1363) (@thofma)
• improvements/fixes for iso_oscar_gap (#1365) (@ThomasBreuer)
• added on_indeterminates for matrix action (#1367) (@ThomasBreuer)
• convenience methods for Vector * MatGroupElem (#1368) (@ThomasBreuer)
• Module Gröbner basis (#1369) (@AlexD97)
• PolyhedralComplex: fix common_refinement type in polymake call (#1370) (@benlorenz)
• Fix wrong usage of // (#1371) (@thofma)
• added map_word (#1372) (@ThomasBreuer)
• Localization overhaul (#1373) (@HechtiDerLachs)
• solve-by-radicals (#1374) (@fieker)
• Minor change in HilbertData (#1375) (@joschmitt)
• add basic doc... (#1377) (@fieker)
• Small adjustments to Docu following recent PRs (#1378) (@wdecker)
• Fix WARNING: could not import Oscar.projective_space into Oscar (#1381) (@fingolfin)
• add a examples/ docstring for abelian_closure (#1382) (@fieker)
• Allow save to / load from IOStream, and other serialization tweaks (#1383) (@fingolfin)
• Qab -> QQAb and variations (#1385) (@fieker)
• Serialization: switch save args order, remove deprecated stuff (#1386) (@fingolfin)
• Revise how the serialization type map is initialized (#1387) (@fingolfin)
• Fix field interface for QQAbField (#1388) (@thofma)
• Refine serialization test setup (#1389) (@fingolfin)
• Minor corrections in the documentation of the localizations and their… (#1390) (@HechtiDerLachs)
• doc: fix a serialization example (#1391) (@fingolfin)
• Fix abelian closure test (#1396) (@thofma)
• re(?) fix for fractional polynomials (#1397) (@fieker)
• fixed typo Chenese to Chinese (#1398) (@CameronBraunstein)
• CI: run only 2 macOS jobs, not 4 (#1399) (@fingolfin)
• added group action on MPolyIdeals (#1401) (@ThomasBreuer)
• Adv/katsura ideals (#1402) (@antonydellavecchia)
• get rid of GAP access in GITFans.jl (#1403) (@ThomasBreuer)
• added an assertion to a quo method (#1404) (@ThomasBreuer)
• Cleanup katsura docstrings (#1405) (@fingolfin)

v0.9.0

Oscar v0.9.0

Diff since v0.8.2

A major change is the renaming of many methods from the form isFOO to is_foo; for example, ispgroup now is called is_pgroups. For the time being, both old and new names are accepted, but in a future Oscar release the old names without the underscore will be dropped. So we recommend adjusting your code to the new names.

Closed issues:

• Allow symbols (and chars???) as arguments to free_group (#659)
• isisomorphic cannot compare all groups (#664)
• Make singular_ring remember the grading? (#886)
• "Replacing docs" warnings (#1061)
• Warnings (?) caused by Serialization / Polymake (#1083)
• Polyhedron intersection performance (#1129)
• Manual: describe how to install Oscar on the start page, resp. link to such a description (#1154)
• Manual: start page has a link to "Introduction" which surprisingly links to "Groups: Introduction" (#1155)
• Nicer syntax for entering permutations (#1189)
• doctest failure in AffinePlaneCurve.jl:225-236 (#1192)
• Add instructions to README.md for using development version (#1193)
• Generators of fraction field (#1195)
• Wanted: discrete logarithm for finite field elements (#1205)
• Conversion of cyclotomics from Oscar to GAP not correct (#1213)
• Map from 0-dim vector space does not work correctly (#1219)
• conversino Oscar-> Gap incomplete... (#1237)
• Failure to install Oscar.jl on a clean macOS 12.3.1 install: can't install gap_packages artifact. (#1254)
• ToricVarieties: Various improvements (#1257)
• ToricVarieties: Use IntegerUnion for code improvement (#1280)
• GC crash while allocating GAP object (#1283)
• Matroid code error (#1284)
• hash problem for QabElem (#1287)
• Oscar matrices over non-commutative rings? (#1293)
• Computation of Galois groups for some polynomials raises UndefVarError (#1323)
• Serialization: don't add UUID to symbols (#1325)
• WARNING: could not import Hecke.homology into Oscar (#1328)

Merged pull requests:

• Prefer setting struct fields by passing them to new (#875) (@fingolfin)
• Start central serialization methods (#1000) (@lkastner)
• Work on triangulations (#1111) (@tbrysiewicz)
• Add sparse multivariate polynomial rings to experimental (#1128) (@lgoe-ac)
• bs/matroids (#1142) (@bschroter)
• ToricVarieties: Towards intersection theory (#1146) (@HereAround)
• Improve the various groups libraries (#1169) (@fingolfin)
• first attempt to isomorphism (#1182) (@ThomasBreuer)
• Basics for tropical curves (#1183) (@lkastner)
• bump singular to 0.10 (#1184) (@tthsqe12)
• Version 0.8.3-DEV (#1185) (@thofma)
• Restore some docstrings for AffAlgHom (#1186) (@thofma)
• small changes (#1187) (@wdecker)
• removed bug in hilbert_series_expanded (#1188) (@wdecker)
• Wrap Singular function minbase for homogeneous ideals (#1191) (@joschmitt)
• Basics of tropical linear spaces (#1194) (@lkastner)
• Allow symbols as arguments to free_group (#1196) (@FriedrichRober)
• Fix stabilizer for "large" permutation groups (#1197) (@fingolfin)
• README.md: add a section on how to contribute (#1198) (@fingolfin)
• Further functionality for affine algebras (#1199) (@wdecker)
• Document serialization, introduce issue and pr templates (#1200) (@lkastner)
• fixed an example for all_small_groups (#1201) (@ThomasBreuer)
• Some tweak for matrix groups code (#1202) (@fingolfin)
• Warn in isnormal & ischaracteristic that they do not check for subgroups (#1203) (@fingolfin)
• Cleanup BiPolyArray definition and constructors a bit (#1204) (@fingolfin)
• Start of wrapper for Julia matrices in GAP. (#1206) (@danielrademacher)
• added character parameters and class parameters (#1207) (@ThomasBreuer)
• ToricVarieties: A few minor changes (#1209) (@HereAround)
• Export cleanup (#1210) (@OguzhanYueruek)
• Rel galois (#1211) (@fieker)
• Tropical Geometry documentation improvement (#1212) (@OguzhanYueruek)
• fixed wrong conductor call (#1214) (@ThomasBreuer)
• More on Hilbert functions (#1215) (@wdecker)
• Start free associative ideals (#1216) (@tthsqe12)
• [CI] add julia 1.8, remove nightly on macos (#1218) (@benlorenz)
• extended multi Hilbert series and other stuff (#1220) (@wdecker)
• Remove local orderings as default_ordering for graded rings (#1221) (@joschmitt)
• various tweaks and poly/number field (#1222) (@fieker)
• Mention community page (#1223) (@lkastner)
• Mention community page + various (#1224) (@lkastner)
• Integrate StraightLinePrograms code (#1225) (@lkastner)
• [CI] reduce job timeout to 2 hours (#1226) (@benlorenz)
• docu snippets for #1191 (#1227) (@wdecker)
• support :indicators and :OD in char. table display (#1228) (@ThomasBreuer)
• Add acting_group(C::GroupConjClass), document some stuff (#1229) (@fingolfin)
• docs: fix cohomCalg:Implementation bib entry (#1231) (@fingolfin)
• Some pedantic docstring tweaks (#1232) (@fingolfin)
• some asserts, some supplements to docu (#1234) (@wdecker)
• Attach topcom directly, serialize toric stuff (#1235) (@lkastner)
• ToricVarieties: Vanishing sets via cohomCalg (#1236) (@HereAround)
• Add conversion from Set{T} to sorted GAP lists (#1238) (@fingolfin)
• Galois cycle (#1239) (@fieker)
• Increase compatbility for halfspace/hyperplane types (#1240) (@alexej-jordan)
• fix missing init (#1241) (@tthsqe12)
• add isomorphism (#1243) (@ThomasBreuer)
• Add coefficient_ring(::MPolyQuo); avoid typeof (#1244) (@fingolfin)
• Change isisomorphic to only return a Bool (#1246) (@fingolfin)
• Improve perfect groups library (#1247) (@fingolfin)
• use new function Singular.LibNormal.isNormal (#1248) (@tthsqe12)
• Subfield lattice (#1250) (@fieker)
• added orthogonal_sign (#1251) (@ThomasBreuer)
• catch a GAP error in invariant_sesquilinear_form (#1252) (@ThomasBreuer)
• cache results of isomorphism (#1253) (@ThomasBreuer)
• admit result GrpAbFinGen for maximal_abelian_quotient (#1256) (@ThomasBreuer)
• Add input validation to some group constructors (#1259) (@fingolfin)
• Code formatting defaults (#1262) (@fingolfin)
• Minor additions and fixes (#1266) (@joschmitt)
• Rename 'Example' section to 'Examples' (#1268) (@fingolfin)
• Improve developer documentation (#1269) (@lkastner)
• small adjustment docu isnormal (#1270) (@wdecker)
• A bug fix and new feature for matroids (#1271) (@bschroter)
• Update to GAP.jl 0.8 (#1272) (@fingolfin)
• [CI] re-enable macos nightly test (#1273) (@benlorenz)
• Rings/mpoly-ideals.jl: ==(I::MPolyIdeal, J::MPolyIdeal), added check for generators before GB computation (#1274) (@YueRen)
• more code and documentation for group characters (#1275) (@ThomasBreuer)
• first step to integrate the group atlas into Oscar (#1276) (@ThomasBreuer)
• Polyhedral geometry/non redundant (#1277) (@alexej-jordan)
• honor --banner=no (and implicitly -q) (#1278) (@lkastner)
• ToricVarieties: Cache rings and ideals (#1279) (@HereAround)
• Enable attribute storing for group products (#1281) (@fingolfin)
• Fix timing bug (#1282) (@lkastner)
• Fix for dual matroids #1284 (#1285) (@bschroter)
• follow-up for pull request #1275 (#1286) (@ThomasBreuer)
• Allow Float as scalar for polyhedra (#1288) (@lkastner)
• Subfield lattice (#1289) (@fieker)
• provide a hash method for QabElem (#1290) (@ThomasBreuer)
• ToricVarieties: More improvements (#1292) (@HereAround)
• Fix 'Oscar.build_doc(;doctest=:fix)' (#1294) (@fingolfin)
• Make doctests faster again (#1298) (@fingolfin)
• Galois doc (#1299) (@fieker)
• rearrange/extend G-set related code (#1300) (@ThomasBreuer)
• provide ZZ(x) and QQ(x) for QabElem (#1301) (@ThomasBreuer)
• Fix bug in loading of polymake objects (#1302) (@lkastner)
• Disable trim_trailing_whitespace in .editorconfig (#1303) (@fingolfin)
• small improvements for group character stuff (#1304) (@ThomasBreuer)
• added iso_oscar_gap(abelian_closure(QQ)) (#1305) (@ThomasBreuer)
• Macro for entering permutations in cycle notation (#1307) (@danielrademacher)
• Start of discrete_log algorithm. (#1308) (@danielrademacher)
• Fix some typos (#1310) (@fingolfin)
• Rename quadratic matrix into square matrix (#1312) (@danielrademacher)
• adjustment multi_hilbert_series, improved docu wrt gradings (#1313) (@wdecker)
• SimplicialComplexes: Propose fix for (co-)homology (#1315) (@lkastner)
• Fix overwritten constructors (#1316) (@fingolfin)
• Enable (de)serialization for arbitrary tuple types (#1317) (@fingolfin)
• Fix "Replacing docs" precompilation warnings (#1318) (@fingolfin)
• add enough stuff to do an AlgCls(Fp) for reps (#1320) (@fieker)
• Add test/Rings/runtests.jl (#1322) (@fingolfin)
• versioninfo: add commit + commit-date (#1324) (@benlorenz)
• Some serialization tweaks (#1326) (@fingolfin)
• PolyhedralGeometry: Improve docstring (#1327) (@lkastner)
• Serialize Symbols; add some tests, minor cleanup (#1329) (@fingolfin)
• Conversions for GrpGen (#1330) (@thofma)
• Update to latest AA/Nemo/Hecke/Singular (#1331) (@fingolfin)
• Adapt to isFOO -> is_FOO changes (#1332) (@fingolfin)
• Experimental MatrixGroup code: remove bad code from <, cleanup (#1333) (@fingolfin)
• Tweak the new @perm macro a bit (#1334) (@fingolfin)
• Resolve #1195 (#1336) (@joschmitt)
• fixed a bug in action_on_blocks (#1338) (@ThomasBreuer)
• TropicalGeometry: underlying polyhedral complex (#1343) (@martapanizzut)
• Adjust ProjEllCrv to EllipticCurve changes (#1344) (@thofma)
• Remove transitive_identification (#1345) (@fingolfin)

v0.8.2

Oscar v0.8.2

Diff since v0.8.1

Closed issues:

• Add build option for ASCII/non-ASCII chars (#318)
• Fix nanosoldier failures / fix loading of GAP package ferret (#652)
• Promotion for finite fields (#960)
• describe for free groups and finitely presented groups (#987)
• msolve crashing for non-real solutions (#1040)
• Group homomorphisms without checks (#1098)
• Graded module morphism inconsistency (#1112)
• Inconsistent definition of irreducible secondary invariants (#1121)
• Implement describe(::GrpAbFinGen) (#1132)
• Wrap IsomorphismSimplifiedFpGroup, SimplifiedFpGroup (#1133)
• Something noisy in the groups code (#1141)
• Can we get the more of the small group database? (#1150)
• iso_oscar_gap for Z/nZ missing (#1170)

Merged pull requests:

• add some eye candy and conversions (#840) (@fieker)
• Adjust doctest for describe(G::GAPGroup) (#948) (@fingolfin)
• scalar/coefficient types in Polyhedral Geometry (#1020) (@alexej-jordan)
• Add option to allow unicode output (#1047) (@thofma)
• Maps from multivariate polynomial rings and quotients thereof (#1048) (@thofma)
• Add the minimal_degree option for irreducible representations (#1069) (@thofma)
• create Oscar groups with context (#1094) (@ThomasBreuer)
• support check for group homom. by images (#1101) (@ThomasBreuer)
• Generalize some method (#1102) (@thofma)
• Version 0.8.2-DEV (#1103) (@thofma)
• Force push when deploying docs (#1105) (@thofma)
• Fix typeof(gens(G)) for matrix groups (#1106) (@fingolfin)
• Spinor norms (#1107) (@simonbrandhorst)
• Thomas breuer tb parent (#1108) (@fieker)
• adjust MapFromFunc related code to changes in Hecke (#1109) (@ThomasBreuer)
• Update localizations and schemes. (#1110) (@HechtiDerLachs)
• Fix Graded module morphism incosistency (see #1112) (#1113) (@AlexD97)
• More fixes to satisfy the incoming MapFromFunc changes (#1114) (@thofma)
• ToricVarieties: Rational functionscharacters, basis of line bundle cohomology and construction of toric varieties from triangulations (#1115) (@HereAround)
• Fix bug with wrong number of arguments in triangulations part. (#1116) (@lkastner)
• More bugs in triangulations. (#1117) (@lkastner)
• Graded module morphism inconsistency (see #1112) (#1120) (@AlexD97)
• add Oscar.versioninfo() function and short technical description of oscar architecture (#1122) (@benlorenz)
• Revise secondary invariants (#1123) (@joschmitt)
• Spinor norms documentation formatting. (#1124) (@simonbrandhorst)
• Dictionaries for caching Gröbner bases w.r.t. different monomial orderings (#1125) (@ederc)
• Docs: Introduction for new developers (#1126) (@lkastner)
• [Do not merge] Fix in Modules for new complexes (#1127) (@AlexD97)
• added a new hom method (#1130) (@ThomasBreuer)
• Bump Hecke to 0.13 (#1131) (@thofma)
• More tests for gradings. Corrections. (#1134) (@wdecker)
• Groups: add type assertions to GAP calls, other tweaks (#1135) (@fingolfin)
• added describe for GrpAbFinGen (#1136) (@ThomasBreuer)
• Improve describe(::GAPGroup) and other group related changes (#1137) (@fingolfin)
• added optional argument check to haspreimage, improved an error message (#1138) (@ThomasBreuer)
• support Oscar.is_unicode_allowed in matrix display (#1144) (@ThomasBreuer)
• set GAP info levels to zero when starting Oscar (#1145) (@ThomasBreuer)
• Wolfram (#1147) (@wdecker)
• Bug fix (#1148) (@fieker)
• msolve v0.2.3 (#1149) (@ederc)
• First version of multivariate Hilbert series and more (#1151) (@wdecker)
• Introduce tropical geometry (#1152) (@lkastner)
• towards a sparse abelian closure, requires Hecke (#1153) (@fieker)
• Temporarily disable printing test for julia master (#1156) (@thofma)
• Convert some Array -> Vector (#1157) (@fingolfin)
• doc: adjust cohomCalg:Implementation bibentry (#1158) (@fingolfin)
• Enable matrix orderings (#1160) (@joschmitt)
• Monomial ordering applications (#1161) (@ederc)
• Sanitize input for triangulation computation. (#1162) (@lkastner)
• support univariate rings in Q(t)[x] (#1163) (@tthsqe12)
• Galois progress (#1164) (@fieker)
• polyhedral geometry: added constructions delpezzo and fano_simplex (#1166) (@micjoswig)
• Adjust localizations to proper types for monomial orderings (#1171) (@joschmitt)
• added iso_oscar_gap, iso_gap_oscar for residue rings (#1172) (@ThomasBreuer)
• Purge AlgHom (#1173) (@thofma)
• Version 0.8.2 (#1174) (@thofma)
• add better sieving in the wreath product case (#1175) (@fieker)
• split singular_ring into singular_coeff_ring and singular_poly_ring (#1176) (@tthsqe12)
• adjusting parts of Docu to new homomorphism type, some asserts (#1177) (@wdecker)
• allow the singular function to convert oscar orderings (#1179) (@tthsqe12)
• init=1 (#1180) (@fieker)
• some more fix (#1181) (@fieker)

v0.8.1

Oscar v0.8.1

Diff since v0.8.0

Closed issues:

• Separate section for number theory (#518)
• GF(p,1) does not work if p is large (i.e., and fmpz) (#590)
• Projective space in in JToric.jl vs. Oscar.jl (#769)
• Release 0.8 todo (#1026)
• adjust doc for toric varieties to OSCAR standard (#1039)
• ToricVarieties: Use properties of Oscar fans (#1055)
• Promotion seems to fail for decorated polynomial rings (#1063)
• Documentation and code forcoefficient_ring(:: AbstractNormalToricVariety) conflict (#1070)
• Don't use naked Vararg (#1072)
• Release Oscar 0.8.1 (#1082)

Merged pull requests:

• ToricVarieties: Faster Stanley-Reisner ideal, (default) coefficient ring, names for homogeneous variables and fmpz-valued rays from polymake (#939) (@HereAround)
• ToricVarieties: Line bundle cohomologies with cohomcalg (#944) (@HereAround)
• add support for Brueckner... (#985) (@fieker)
• ToricVarieties: Implement structure sheaf (#1032) (@HereAround)
• Graph: Add shortest_path_dijkstra (#1041) (@lkastner)
• Start using AbstractAlgebra.@attr (#1049) (@fingolfin)
• Version 0.8.1-DEV (#1053) (@fingolfin)
• Various improvements of toric geometry part (#1054) (@lkastner)
• ToricVarieties: Additions for divisors, divisor classes and tensor products for line bundles (#1056) (@HereAround)
• Add parent check. (#1060) (@HechtiDerLachs)
• Add missing promotion (#1064) (@thofma)
• ToricVarieties/PolyhedralGeometry: Introduce FanLikeType (#1065) (@lkastner)
• added iso_oscar_gap for univar. polyn. rings (#1067) (@ThomasBreuer)
• conversion Oscar -> GAP for finite fields ... (#1068) (@ThomasBreuer)
• changed Oscar.RepPc.reps (#1071) (@ThomasBreuer)
• Fallback to plain GAP if ferret is not available (#1073) (@fingolfin)
• Use @attr some more (#1074) (@fingolfin)
• added documentation for group characters (#1076) (@ThomasBreuer)
• Make hnf less noisy (#1077) (@thofma)
• Secondary invariants (#1078) (@joschmitt)
• Wolfram (#1079) (@wdecker)
• Fix Vararg warning (#1080) (@thofma)
• Add deepcopy for MPolyElem_dec (#1081) (@joschmitt)
• test/ToricVarieties: fix+improve test for Stanley Reisner ideal (#1086) (@benlorenz)
• test ismonomial + small things + suggestions @fingolfin (#1090) (@wdecker)
• Require Hecke >= 0.11.0 (#1091) (@thofma)
• add argument checks for iso_oscar_gap, iso_gap_oscar (#1092) (@ThomasBreuer)
• Use read(io,String) instead of String((read(io)) (#1096) (@fingolfin)
• Use @attr some more (#1097) (@fingolfin)
• ToricVarieties: Code improvements (#1099) (@HereAround)
• Version 0.8.1 (#1100) (@fingolfin)

v0.8.0

Oscar v0.8.0

Diff since v0.7.1

Closed issues:

• Document mpoly stuff (#123)
• Deprecate listperm, instead add constructors (#282)
• Create experimental PR using GroupsCore.jl (#399)
• docs: "introduction" vs "interface" (#515)
• subgroup and sub (#667)
• CI crash in test/Rings/mpoly_affine_algebras_test.jl with Julia 1.7.0-rc1 (#733)
• Remove workarounds in Polytopes after next libpolymake_julia release (#758)
• gap_to_julia (#794)
• Implement simplicial complexes (#829)
• Rename, document and advertise @declare_other and set_special/get_special (#843)
• Missing Base.deepcopy_internal for Group interface (#860)
• Allow FiniteField(fmpz(5),2) and GF(fmpz(5), 2) and GF(fmpz(5), 2, "t") (#863)
• funny spelling of function names in toric geometry section (#877)
• Fix abelian_group to accept fmpz (#884)
• allow ishomogeneous for more types of polynomials (#909)
• vertex-facet incidences for polyhedra (maybe others, too) unnecessarily expensive (#915)
• What to do for object clashes? (#922)
• CI: Codecov for experimental (#963)
• Ideals in generic polynomial rings (#988)
• missing ordering function for graded rings (#989)
• Polynomial build complex does not throw out of bounds error (#991)
• Improve show methods for Toric Line Bundles (#1017)
• README.md example is broken (#1030)

Merged pull requests:

• add a bit more compliant rand methods for GAPGroup (#402) (@kalmarek)
• Add more monomial and module orderings (#723) (@wbhart)
• added character_field (#836) (@ThomasBreuer)
• Cache computed properties for toric varieties (#839) (@HereAround)
• PolyhedralGeometry: Compute triangulations of polytope (#848) (@lkastner)
• Graded modules (#858) (@AlexD97)
• automorphism groups of GrpAbFinGen (#876) (@simonbrandhorst)
• Add PolyhedralComplex as new object (#887) (@lkastner)
• Put most toplevel import/using statements into single file (#892) (@fingolfin)
• Tidy up invariant theory code (#893) (@joschmitt)
• docu modules continued (#904) (@wdecker)
• Localizations of affine algebras and affine schemes (#905) (@HechtiDerLachs)
• Improve some functions for modules (#910) (@AlexD97)
• Bib: add some missing DOIs, minor tweaks (#913) (@fingolfin)
• Start to correct the binomials. (#914) (@tthsqe12)
• Developers Corner (#918) (@alexej-jordan)
• Added the `AutomorphismGroupElem{T} where T' and first methods (#919) (@StevellM)
• First draft of simplicial complexes (#921) (@micjoswig)
• Fix degree computation for filtered rings (#923) (@AlexD97)
• Bump dependencies (#924) (@thofma)
• Improve SubObjectIterator (BoundsError, re-naming, face(t)s) (#925) (@alexej-jordan)
• Improve type stability (#927) (@fingolfin)
• Make use of get_attribute! (#928) (@fingolfin)
• Improvements toric varieties (#929) (@HereAround)
• Torsion form orthogonal group gens (#930) (@simonbrandhorst)
• Use imperative in docstrings, as per Julia guidelines (#931) (@fingolfin)
• Edit especially ugly occurences of is* and n* (#933) (@lkastner)
• Require GAP 0.7.3 (#934) (@fingolfin)
• corrections to docu (#935) (@wdecker)
• Other minor improvements for toric varieties (#940) (@HereAround)
• New properties and attributes for toric line bundles (#941) (@HereAround)
• add accessors and constructors (#942) (@fieker)
• More grading (#943) (@fieker)
• Avoid needs_parentheses (#945) (@fingolfin)
• More work on GAP -> Oscar matrix conversion (#946) (@fingolfin)
• Addressing the issue from #945 (#947) (@HechtiDerLachs)
• Wolfram (#949) (@wdecker)
• PolyhedralGeometry: improve compatibility with fmpz and fmpq types (#950) (@benlorenz)
• Fix conversion of negative GAP integers to fmpz (#951) (@fingolfin)
• Give instructions for how to cite OSCAR (#953) (@fingolfin)
• More G-module (#954) (@fieker)
• Galois (#955) (@fieker)
• Improve show for modules (#956) (@AlexD97)
• Remove obvious zeros from intersection of modules (#957) (@AlexD97)
• Use import.jl [UngradedModules.jl] (#958) (@AlexD97)
• Adjust to recent Hecke changes (#959) (@thofma)
• Introduce Zariski open sets of affine schemes. (#961) (@HechtiDerLachs)
• CI: update codecov/codecov-action to v2 (#962) (@fingolfin)
• add stuff to compute representations for PcGroups (#964) (@fieker)
• use the "new", sparse free_module only for MPoly (#965) (@fieker)
• Add experimental folder to coverage (#967) (@thofma)
• Documentation [UngradedModules.jl] (#968) (@AlexD97)
• More GAP -> Oscar conversions (#969) (@fingolfin)
• add tests for gmodules and move to Experimental (#970) (@fieker)
• first version of schur_index (#971) (@ThomasBreuer)
• Improve type stability/inference (#974) (@fingolfin)
• Improve SimplicialComplex (#977) (@alexej-jordan)
• amendments to #965 (#978) (@wdecker)
• first attempt for iso_gap_oscar (#979) (@ThomasBreuer)
• Resolved max and min bifurcation via the word optimal (#983) (@tbrysiewicz)
• Adjust naming convention and minor cleanup (#984) (@thofma)
• Support MatrixGroup over integer matrices (#992) (@fingolfin)
• Adjust docu to PR #943 and more on graded rings (#994) (@wdecker)
• Mj/simplicial homology (#996) (@micjoswig)
• Delay Singular ring instantiation during ideal generation (#998) (@ederc)
• Improve showing toric varieties (#999) (@lkastner)
• Make parts of the groups code more Julia-ish (#1001) (@fingolfin)
• Fix promotion for graded polynomial rings (#1002) (@thofma)
• next iteration for iso_oscar_gap and iso_gap_oscar (#1004) (@ThomasBreuer)
• added maximal_abelian_quotient (#1007) (@ThomasBreuer)
• Remove Singular dependencies from msolve (#1008) (@ederc)
• Adjust docu to PR #994 (#1009) (@wdecker)
• Allow more graded ops (#1010) (@tthsqe12)
• renamed centre to center (#1011) (@ThomasBreuer)
• Reacting to an old comment by @fingolfin (#1012) (@wdecker)
• improved some assertion messages (#1014) (@ThomasBreuer)
• polyhedral: g- and h-vectors (#1016) (@micjoswig)
• Wolfram (#1018) (@wdecker)
• fixed centre -> center in a test (#1019) (@ThomasBreuer)
• New module type file (see #1013) (#1021) (@AlexD97)
• Added gelfand tsetlin polytope (#1022) (@tbrysiewicz)
• small additions concerning irrationalities (#1024) (@ThomasBreuer)
• Add restriction of codomain for abelian groups (#1025) (@thofma)
• bib: 'Pairs of Generators for Matrix Groups' is now on the arXiv (#1027) (@fingolfin)
• ToricVarieties: Bug fix (#1028) (@HereAround)
• Add etc/update_version.sh script (#1029) (@fingolfin)
• ToricVarieties: Improve show method for toric line bundles (#1031) (@HereAround)
• ToricVarieties: Resolve #922 (#1033) (@lkastner)
• ToricVarieties: Computation of Betti numbers limited to complete, simplicial varieties (#1034) (@HereAround)
• PolyhedralGeometry: Deal with fine and star triangulations. (#1035) (@lkastner)
• support deepcopy_internal for group elements (#1037) (@ThomasBreuer)
• changed compose in src/Groups ... (#1038) (@ThomasBreuer)
• Adjust for GroupsCore conformance tests (#1042) (@fingolfin)
• Replace arbitrary 'authors' list by a generic entry (#1043) (@fingolfin)
• Fix README (#1044) (@thofma)
• Bump version of AA + Nemo + Singular + Hecke (#1045) (@thofma)
• More on gradings (#1046) (@wdecker)
• Remove deprecated function listperm (#1050) (@fingolfin)
• Tag new version 0.8.0 (#1052) (@thofma)