Description of fast matrix multiplication algorithm: ⟨12×16×27:3016⟩

Algorithm type

28X6Y8Z6+8X3Y12Z3+8X6Y8Z3+8X9Y4Z3+4X3Y4Z9+16X3Y8Z3+8XY12Z+16X6Y4Z3+224X4Y4Z4+28X2Y8Z2+8X2Y8Z+64X6Y2Z2+64X4Y4Z2+28X3Y4Z3+64X2Y6Z2+32X2Y2Z6+16XY8Z+128X4Y2Z2+8X3Y4Z+128X2Y4Z2+4XY4Z3+16X2Y4Z+672X2Y2Z2+28XY4Z+128X3YZ+128X2Y2Z+128XY3Z+64XYZ3+256X2YZ+256XY2Z+448XYZ28X6Y8Z68X3Y12Z38X6Y8Z38X9Y4Z34X3Y4Z916X3Y8Z38XY12Z16X6Y4Z3224X4Y4Z428X2Y8Z28X2Y8Z64X6Y2Z264X4Y4Z228X3Y4Z364X2Y6Z232X2Y2Z616XY8Z128X4Y2Z28X3Y4Z128X2Y4Z24XY4Z316X2Y4Z672X2Y2Z228XY4Z128X3YZ128X2Y2Z128XY3Z64XYZ3256X2YZ256XY2Z448XYZ28*X^6*Y^8*Z^6+8*X^3*Y^12*Z^3+8*X^6*Y^8*Z^3+8*X^9*Y^4*Z^3+4*X^3*Y^4*Z^9+16*X^3*Y^8*Z^3+8*X*Y^12*Z+16*X^6*Y^4*Z^3+224*X^4*Y^4*Z^4+28*X^2*Y^8*Z^2+8*X^2*Y^8*Z+64*X^6*Y^2*Z^2+64*X^4*Y^4*Z^2+28*X^3*Y^4*Z^3+64*X^2*Y^6*Z^2+32*X^2*Y^2*Z^6+16*X*Y^8*Z+128*X^4*Y^2*Z^2+8*X^3*Y^4*Z+128*X^2*Y^4*Z^2+4*X*Y^4*Z^3+16*X^2*Y^4*Z+672*X^2*Y^2*Z^2+28*X*Y^4*Z+128*X^3*Y*Z+128*X^2*Y^2*Z+128*X*Y^3*Z+64*X*Y*Z^3+256*X^2*Y*Z+256*X*Y^2*Z+448*X*Y*Z

Algorithm definition

The algorithm ⟨12×16×27:3016⟩ is the (Kronecker) tensor product of ⟨3×4×3:29⟩ with ⟨4×4×9:104⟩.

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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