From 8d7495c26b45786d62376228760b46eed5164458 Mon Sep 17 00:00:00 2001
From: mtfishman <mfishman@flatironinstitute.org>
Date: Tue, 25 Nov 2025 12:03:35 -0500
Subject: [PATCH 1/2] Upgrade TensorAlgebra overloads

---
 Project.toml                                 |  2 +-
 src/fusiontensor/tensor_algebra_interface.jl | 15 ++++++++-------
 test/Project.toml                            |  1 +
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/Project.toml b/Project.toml
index 8ec8728..9eec08d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "FusionTensors"
 uuid = "e16ca583-1f51-4df0-8e12-57d32947d33e"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
-version = "0.5.15"
+version = "0.5.16"
 
 [deps]
 Accessors = "7d9f7c33-5ae7-4f3b-8dc6-eff91059b697"
diff --git a/src/fusiontensor/tensor_algebra_interface.jl b/src/fusiontensor/tensor_algebra_interface.jl
index ade110c..72657f2 100644
--- a/src/fusiontensor/tensor_algebra_interface.jl
+++ b/src/fusiontensor/tensor_algebra_interface.jl
@@ -4,7 +4,7 @@ using BlockArrays: Block
 using GradedArrays: space_isequal
 using LinearAlgebra: mul!
 using TensorAlgebra: TensorAlgebra, AbstractBlockPermutation, FusionStyle, blockedperm,
-    genperm, matricize, unmatricize
+    blockedtrivialperm, genperm, matricize, unmatricize
 
 function TensorAlgebra.output_axes(
         ::typeof(contract),
@@ -52,7 +52,7 @@ function TensorAlgebra.unmatricize(
     return FusionTensor(data_matrix(m), codomain_axes, domain_axes)
 end
 
-function TensorAlgebra.permuteblockeddims(
+function TensorAlgebra.bipermutedims(
         ft::FusionTensor,
         codomain_perm::Tuple{Vararg{Int}},
         domain_perm::Tuple{Vararg{Int}},
@@ -60,7 +60,7 @@ function TensorAlgebra.permuteblockeddims(
     return permutedims(ft, permmortar((codomain_perm, domain_perm)))
 end
 
-function TensorAlgebra.permuteblockeddims!(
+function TensorAlgebra.bipermutedims!(
         a_dest::FusionTensor,
         a_src::FusionTensor,
         codomain_perm::Tuple{Vararg{Int}},
@@ -69,7 +69,8 @@ function TensorAlgebra.permuteblockeddims!(
     return permutedims!(a_dest, a_src, permmortar((codomain_perm, domain_perm)))
 end
 
-# TODO define custom broadcast rules
+# TODO: Define custom broadcast rules for FusionTensors so that we can delete
+# this method.
 function TensorAlgebra.unmatricizeadd!(
         style::FusionTensorFusionStyle,
         a_dest::AbstractArray,
@@ -119,11 +120,11 @@ for f in MATRIX_FUNCTIONS
     @eval begin
         function TensorAlgebra.$f(
                 a::FusionTensor,
-                codomain_perm::Tuple{Vararg{Int}}, domain_perm::Tuple{Vararg{Int}};
+                codomain_length::Val, domain_length::Val;
                 kwargs...,
             )
-            a_mat = matricize(a, codomain_perm, domain_perm)
-            biperm = permmortar((codomain_perm, domain_perm))
+            a_mat = matricize(a, codomain_length, domain_length)
+            biperm = blockedtrivialperm((codomain_length, domain_length))
             permuted_axes = axes(a)[biperm]
             checkspaces_dual(codomain(permuted_axes), domain(permuted_axes))
             fa_mat = set_data_matrix(a_mat, Base.$f(data_matrix(a_mat); kwargs...))
diff --git a/test/Project.toml b/test/Project.toml
index af5b399..a64b915 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -15,6 +15,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [sources]
 FusionTensors = {path = ".."}
+TensorAlgebra = {path = "/Users/mfishman/.julia/dev/TensorAlgebra"}
 
 [compat]
 Aqua = "0.8.11"

From de8701234fd8d3c36223d9ec47bad5063724ede2 Mon Sep 17 00:00:00 2001
From: mtfishman <mfishman@flatironinstitute.org>
Date: Tue, 25 Nov 2025 12:55:46 -0500
Subject: [PATCH 2/2] Fix Projects

---
 Project.toml      | 2 +-
 test/Project.toml | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/Project.toml b/Project.toml
index 9eec08d..473394e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -29,7 +29,7 @@ LRUCache = "1.6"
 LinearAlgebra = "1.10"
 Random = "1.10"
 Strided = "2.3"
-TensorAlgebra = "0.5.1"
+TensorAlgebra = "0.5.2"
 TensorKitSectors = "0.1, 0.2"
 TensorProducts = "0.1.7"
 TypeParameterAccessors = "0.4"
diff --git a/test/Project.toml b/test/Project.toml
index a64b915..af5b399 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -15,7 +15,6 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [sources]
 FusionTensors = {path = ".."}
-TensorAlgebra = {path = "/Users/mfishman/.julia/dev/TensorAlgebra"}
 
 [compat]
 Aqua = "0.8.11"