Description of fast matrix multiplication algorithm: ⟨4×4×11:129⟩

Algorithm type

X2⁢Y4⁢Z2+X2⁢Y2⁢Z4+45⁢X2⁢Y2⁢Z2+X⁢Y3⁢Z2+X⁢Y2⁢Z3+2⁢X⁢Y3⁢Z+3⁢X⁢Y⁢Z3+2⁢X2⁢Y⁢Z+19⁢X⁢Y2⁢Z+18⁢X⁢Y⁢Z2+36⁢X⁢Y⁢ZX2Y4Z2X2Y2Z445X2Y2Z2XY3Z2XY2Z32XY3Z3XYZ32X2YZ19XY2Z18XYZ236XYZX^2*Y^4*Z^2+X^2*Y^2*Z^4+45*X^2*Y^2*Z^2+X*Y^3*Z^2+X*Y^2*Z^3+2*X*Y^3*Z+3*X*Y*Z^3+2*X^2*Y*Z+19*X*Y^2*Z+18*X*Y*Z^2+36*X*Y*Z

Algorithm definition

The algorithm ⟨4×4×11:129⟩ 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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