Tensor canonicalization

[mkoeppe]

Literature in particular for multiterm symmetries:

• Li, Li, Li, Riemann Tensor Polynomial Canonicalization by Graph Algebra Extension, https://arxiv.org/abs/1701.08487v1 has good pointers to the literature and software

SymPy:

• https://docs.sympy.org/latest/modules/tensor/tensor.html#sympy.tensor.tensor.TensorSymmetry
• https://docs.sympy.org/latest/modules/combinatorics/tensor_can.html

Mathematica:

• see Phased permutation groups #30276 Phased permutation groups

CC: @egourgoulhon @tscrim

Component: linear algebra

Issue created by migration from https://trac.sagemath.org/ticket/32028

[mkoeppe]

Description changed:

--- 
+++ 
@@ -1,7 +1,13 @@
-... in particular for multiterm symmetries
+Literature in particular for multiterm symmetries:
 
-Li, Li, Li, Riemann Tensor Polynomial Canonicalization by Graph Algebra Extension, 
+- Li, Li, Li, Riemann Tensor Polynomial Canonicalization by Graph Algebra Extension, 
 https://arxiv.org/abs/1701.08487v1 has good pointers to the literature and software
 
+SymPy:
 
+- https://docs.sympy.org/latest/modules/tensor/tensor.html#sympy.tensor.tensor.TensorSymmetry
+- https://docs.sympy.org/latest/modules/combinatorics/tensor_can.html
 
+Mathematica:
+- see #30276 Phased permutation groups
+

[mkoeppe]

Description changed:

--- 
+++ 
@@ -1,7 +1,6 @@
 Literature in particular for multiterm symmetries:
 
-- Li, Li, Li, Riemann Tensor Polynomial Canonicalization by Graph Algebra Extension, 
-https://arxiv.org/abs/1701.08487v1 has good pointers to the literature and software
+- Li, Li, Li, Riemann Tensor Polynomial Canonicalization by Graph Algebra Extension, https://arxiv.org/abs/1701.08487v1 has good pointers to the literature and software
 
 SymPy: