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Change the *default* representation for perfect groups to IsPermGroup (previously IsFpGroup) #4506

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merged 2 commits into from
May 25, 2021

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@hulpke hulpke commented May 21, 2021

The default choice of representation used by the perfect groups library is
as finitely presented group. (This was decided by V. Felsch, when he
implemented this library in the 1990s.)

However, short of constructing or storing, this representation is almost
universally inferior to a permutation representation. This commit thus
switches this default.

@hulpke hulpke added kind: enhancement Label for issues suggesting enhancements; and for pull requests implementing enhancements release notes: to be added PRs introducing changes that should be (but have not yet been) mentioned in the release notes kind: general proposed change labels May 21, 2021
The default choice of representation used by the perfect groups library is
as finitely presented group. (This was decided by V. Felsch, when he
implemented this library in the 1990s.)

However, short of constructing or storing, this representation is almost
universally inferior to a permutation representation. This commit thus
switches this default.
@fingolfin fingolfin merged commit 146b9a4 into gap-system:master May 25, 2021
@fingolfin fingolfin changed the title ENHANCE: Default representation for perfect groups Change the *default* representation for perfect groups to IsPermGroup (previously IsFpGroup) Aug 17, 2022
@fingolfin fingolfin added release notes: use title For PRs: the title of this PR is suitable for direct use in the release notes and removed release notes: to be added PRs introducing changes that should be (but have not yet been) mentioned in the release notes labels Aug 17, 2022
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3 participants