Description of fast matrix multiplication algorithm: ⟨4×10×22:609⟩

Algorithm type

2⁢X4⁢Y8⁢Z4+21⁢X4⁢Y4⁢Z4+4⁢X2⁢Y8⁢Z2+12⁢X2⁢Y6⁢Z2+26⁢X2⁢Y4⁢Z2+160⁢X2⁢Y2⁢Z2+24⁢X⁢Y4⁢Z+72⁢X⁢Y3⁢Z+84⁢X⁢Y2⁢Z+204⁢X⁢Y⁢Z2X4Y8Z421X4Y4Z44X2Y8Z212X2Y6Z226X2Y4Z2160X2Y2Z224XY4Z72XY3Z84XY2Z204XYZ2*X^4*Y^8*Z^4+21*X^4*Y^4*Z^4+4*X^2*Y^8*Z^2+12*X^2*Y^6*Z^2+26*X^2*Y^4*Z^2+160*X^2*Y^2*Z^2+24*X*Y^4*Z+72*X*Y^3*Z+84*X*Y^2*Z+204*X*Y*Z

Algorithm definition

The algorithm ⟨4×10×22:609⟩ is the (Kronecker) tensor product of ⟨2×2×2:7⟩ with ⟨2×5×11:87⟩.

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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