Description of fast matrix multiplication algorithm: ⟨4×20×25:1280⟩

Algorithm type

80⁢X4⁢Y8⁢Z4+32⁢X2⁢Y12⁢Z2+32⁢X⁢Y12⁢Z+160⁢X2⁢Y8⁢Z2+80⁢X⁢Y8⁢Z+128⁢X2⁢Y4⁢Z2+160⁢X2⁢Y2⁢Z2+128⁢X⁢Y4⁢Z+64⁢X⁢Y3⁢Z+160⁢X⁢Y2⁢Z+256⁢X⁢Y⁢Z80X4Y8Z432X2Y12Z232XY12Z160X2Y8Z280XY8Z128X2Y4Z2160X2Y2Z2128XY4Z64XY3Z160XY2Z256XYZ80*X^4*Y^8*Z^4+32*X^2*Y^12*Z^2+32*X*Y^12*Z+160*X^2*Y^8*Z^2+80*X*Y^8*Z+128*X^2*Y^4*Z^2+160*X^2*Y^2*Z^2+128*X*Y^4*Z+64*X*Y^3*Z+160*X*Y^2*Z+256*X*Y*Z

Algorithm definition

The algorithm ⟨4×20×25:1280⟩ is the (Kronecker) tensor product of ⟨2×4×5:32⟩ with ⟨2×5×5:40⟩.

Algorithm description

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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