Description of fast matrix multiplication algorithm: ⟨10×20×32:3724⟩

Algorithm type

336X4Y4Z4+4XY9Z+6X6Y2Z2+16X4Y2Z4+124X2Y6Z2+18X2Y4Z4+12X2Y2Z6+6XY6Z2+74X4Y2Z2+8X3Y2Z3+592X2Y4Z2+124X2Y2Z4+64XY6Z+2X3Y3Z+8X2Y2Z3+24XY4Z2+4XY3Z3+8X3Y2Z+20X2Y3Z+686X2Y2Z2+192XY4Z+40XY3Z2+16XY2Z3+10X3YZ+80X2Y2Z+42X2YZ2+52XY3Z+190XY2Z2+20XYZ3+178X2YZ+368XY2Z+222XYZ2+178XYZ336X4Y4Z44XY9Z6X6Y2Z216X4Y2Z4124X2Y6Z218X2Y4Z412X2Y2Z66XY6Z274X4Y2Z28X3Y2Z3592X2Y4Z2124X2Y2Z464XY6Z2X3Y3Z8X2Y2Z324XY4Z24XY3Z38X3Y2Z20X2Y3Z686X2Y2Z2192XY4Z40XY3Z216XY2Z310X3YZ80X2Y2Z42X2YZ252XY3Z190XY2Z220XYZ3178X2YZ368XY2Z222XYZ2178XYZ336*X^4*Y^4*Z^4+4*X*Y^9*Z+6*X^6*Y^2*Z^2+16*X^4*Y^2*Z^4+124*X^2*Y^6*Z^2+18*X^2*Y^4*Z^4+12*X^2*Y^2*Z^6+6*X*Y^6*Z^2+74*X^4*Y^2*Z^2+8*X^3*Y^2*Z^3+592*X^2*Y^4*Z^2+124*X^2*Y^2*Z^4+64*X*Y^6*Z+2*X^3*Y^3*Z+8*X^2*Y^2*Z^3+24*X*Y^4*Z^2+4*X*Y^3*Z^3+8*X^3*Y^2*Z+20*X^2*Y^3*Z+686*X^2*Y^2*Z^2+192*X*Y^4*Z+40*X*Y^3*Z^2+16*X*Y^2*Z^3+10*X^3*Y*Z+80*X^2*Y^2*Z+42*X^2*Y*Z^2+52*X*Y^3*Z+190*X*Y^2*Z^2+20*X*Y*Z^3+178*X^2*Y*Z+368*X*Y^2*Z+222*X*Y*Z^2+178*X*Y*Z

Algorithm definition

The algorithm ⟨10×20×32:3724⟩ is serendipitous tensor product (⟨5×5×8:144⟩ - 10) ⊗ ⟨2×4×4:26⟩ +5⟨4×4×4:48⟩.

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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