Description of fast matrix multiplication algorithm: ⟨2×11×16:272⟩

Algorithm type

XY8Z+2XY7Z+12XY6Z+8X2Y3Z2+11XY5Z+72X2Y2Z2+6XY4Z+2XY3Z+18XY2Z+140XYZXY8Z2XY7Z12XY6Z8X2Y3Z211XY5Z72X2Y2Z26XY4Z2XY3Z18XY2Z140XYZX*Y^8*Z+2*X*Y^7*Z+12*X*Y^6*Z+8*X^2*Y^3*Z^2+11*X*Y^5*Z+72*X^2*Y^2*Z^2+6*X*Y^4*Z+2*X*Y^3*Z+18*X*Y^2*Z+140*X*Y*Z

Algorithm definition

The algorithm ⟨2×11×16:272⟩ is taken from:

John Edward Hopcroft and Leslie R. Kerr. On minimizing the number of multiplication necessary for matrix multiplication. SIAM Journal on Applied Mathematics, 20(1), January 1971. [DOI]

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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