Description of fast matrix multiplication algorithm: ⟨10×15×24:2155⟩

Algorithm type

168X4Y4Z4+3X6Y2Z2+6X2Y6Z2+9X2Y4Z4+6X2Y2Z6+36X4Y2Z2+3X3Y2Z3+408X2Y4Z2+62X2Y2Z4+12XY6Z+X4YZ2+X2Y3Z2+9X2Y2Z3+18XY4Z2+6X4YZ+6X3Y2Z+X3YZ2+3X2Y3Z+399X2Y2Z2+3X2YZ3+144XY4Z+XY3Z2+12XY2Z3+2XYZ4+14X3YZ+60X2Y2Z+27X2YZ2+12XY3Z+138XY2Z2+21XYZ3+77X2YZ+240XY2Z+143XYZ2+104XYZ168X4Y4Z43X6Y2Z26X2Y6Z29X2Y4Z46X2Y2Z636X4Y2Z23X3Y2Z3408X2Y4Z262X2Y2Z412XY6ZX4YZ2X2Y3Z29X2Y2Z318XY4Z26X4YZ6X3Y2ZX3YZ23X2Y3Z399X2Y2Z23X2YZ3144XY4ZXY3Z212XY2Z32XYZ414X3YZ60X2Y2Z27X2YZ212XY3Z138XY2Z221XYZ377X2YZ240XY2Z143XYZ2104XYZ168*X^4*Y^4*Z^4+3*X^6*Y^2*Z^2+6*X^2*Y^6*Z^2+9*X^2*Y^4*Z^4+6*X^2*Y^2*Z^6+36*X^4*Y^2*Z^2+3*X^3*Y^2*Z^3+408*X^2*Y^4*Z^2+62*X^2*Y^2*Z^4+12*X*Y^6*Z+X^4*Y*Z^2+X^2*Y^3*Z^2+9*X^2*Y^2*Z^3+18*X*Y^4*Z^2+6*X^4*Y*Z+6*X^3*Y^2*Z+X^3*Y*Z^2+3*X^2*Y^3*Z+399*X^2*Y^2*Z^2+3*X^2*Y*Z^3+144*X*Y^4*Z+X*Y^3*Z^2+12*X*Y^2*Z^3+2*X*Y*Z^4+14*X^3*Y*Z+60*X^2*Y^2*Z+27*X^2*Y*Z^2+12*X*Y^3*Z+138*X*Y^2*Z^2+21*X*Y*Z^3+77*X^2*Y*Z+240*X*Y^2*Z+143*X*Y*Z^2+104*X*Y*Z

Algorithm definition

The algorithm ⟨10×15×24:2155⟩ is serendipitous tensor product (⟨5×5×8:144⟩ - 10) ⊗ ⟨2×3×3:15⟩ +5⟨4×3×3:29⟩.

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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