Description of fast matrix multiplication algorithm: ⟨4×6×6:105⟩

Algorithm type

3⁢X4⁢Y4⁢Z4+6⁢X2⁢Y4⁢Z2+24⁢X2⁢Y2⁢Z2+36⁢X⁢Y2⁢Z+36⁢X⁢Y⁢Z3X4Y4Z46X2Y4Z224X2Y2Z236XY2Z36XYZ3*X^4*Y^4*Z^4+6*X^2*Y^4*Z^2+24*X^2*Y^2*Z^2+36*X*Y^2*Z+36*X*Y*Z

Algorithm definition

The algorithm ⟨4×6×6:105⟩ is the (Kronecker) tensor product of ⟨2×2×2:7⟩ with ⟨2×3×3:15⟩.

Algorithm description

Algorithm symmetries

The following group of 72 isotropies acts as a permutation group on algorithm tensor representation:

These encodings are given in compressed text format using the maple computer algebra system. In each cases, the last line could be understood as a description of the encoding with respect to classical matrix multiplication algorithm. As these outputs are structured, one can construct easily a parser to its favorite format using the maple documentation without this software.


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