Description of fast matrix multiplication algorithm: ⟨6×11×12:521⟩

Algorithm type

2 X^{4} Y^{6} Z^{4} + 7 X^{4} Y^{5} Z^{4} + 17 X^{4} Y^{4} Z^{4} + 3 X^{2} Y^{8} Z^{2} + 3 X^{4} Y^{3} Z^{4} + 6 X^{2} Y^{7} Z^{2} + 3 X Y^{9} Z + 7 X^{6} Y^{2} Z^{2} + X^{3} Y^{3} Z^{4} + 18 X^{2} Y^{6} Z^{2} + 12 X^{2} Y^{4} Z^{4} + 7 X^{2} Y^{2} Z^{6} + 5 X Y^{8} Z + X^{6} Y Z^{2} + X^{5} Y^{2} Z^{2} + 6 X^{2} Y^{5} Z^{2} + 11 X^{2} Y^{3} Z^{4} + 4 X Y^{7} Z + 4 X Y^{6} Z^{2} + X^{5} Y Z^{2} + 43 X^{2} Y^{4} Z^{2} + X^{2} Y^{2} Z^{4} + 10 X Y^{6} Z + 8 X Y^{5} Z^{2} + X^{3} Y^{3} Z + 29 X^{2} Y^{3} Z^{2} + 6 X Y^{5} Z + 12 X Y^{4} Z^{2} + 16 X^{3} Y^{2} Z + 4 X^{2} Y^{3} Z + 44 X^{2} Y^{2} Z^{2} + 20 X Y^{4} Z + 5 X Y^{3} Z^{2} + 14 X Y^{2} Z^{3} + 16 X^{3} Y Z + X^{2} Y^{2} Z + 3 X^{2} Y Z^{2} + 43 X Y^{3} Z + 55 X Y^{2} Z^{2} + 20 X Y Z^{3} + X^{2} Y Z + 28 X Y^{2} Z + 13 X Y Z^{2} + 9 X Y Z

Algorithm definition

The algorithm ⟨6×11×12:521⟩ 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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