Description of fast matrix multiplication algorithm: ⟨6×12×16:736⟩

Algorithm type

4 X^{4} Y^{5} Z^{4} + 36 X^{4} Y^{4} Z^{4} + 12 X^{6} Y^{2} Z^{2} + 8 X^{4} Y^{4} Z^{2} + 26 X^{2} Y^{6} Z^{2} + 8 X^{2} Y^{4} Z^{4} + 12 X^{2} Y^{2} Z^{6} + 2 X^{2} Y^{6} Z + 28 X^{2} Y^{5} Z^{2} + 4 X Y^{7} Z + 2 X Y^{6} Z^{2} + 4 X^{4} Y^{2} Z^{2} + X^{2} Y^{5} Z + 105 X^{2} Y^{4} Z^{2} + 4 X^{2} Y^{2} Z^{4} + 25 X Y^{6} Z + X Y^{5} Z^{2} + 6 X^{3} Y^{3} Z + 3 X^{2} Y^{4} Z + 52 X^{2} Y^{3} Z^{2} + 36 X Y^{5} Z + 4 X Y^{4} Z^{2} + 6 X Y^{3} Z^{3} + X^{3} Y^{2} Z + 2 X^{2} Y^{3} Z + 37 X^{2} Y^{2} Z^{2} + 67 X Y^{4} Z + 58 X Y^{3} Z^{2} + 3 X Y^{2} Z^{3} + 5 X^{3} Y Z + 2 X^{2} Y^{2} Z + 56 X Y^{3} Z + 36 X Y^{2} Z^{2} + 3 X Y Z^{3} + 2 X^{2} Y Z + 16 X Y^{2} Z + 55 X Y Z^{2} + 4 X Y Z

Algorithm definition

The algorithm ⟨6×12×16:736⟩ is taken from:

Andrew I. Perminov. FastMatrixMultiplication, GitHub, February 2026. [ GitHub repository ]

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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