Description of fast matrix multiplication algorithm: ⟨6×20×20:1504⟩

Algorithm type

104X4Y8Z4+16X2Y12Z2+16X4Y8Z2+8X2Y8Z4+16XY12Z+32X6Y4Z2+168X2Y8Z2+24X2Y4Z6+16X2Y8Z+8XY8Z2+48X4Y4Z2+24X2Y4Z4+64XY8Z+32X3Y4Z+40X2Y4Z2+24XY4Z3+48X2Y4Z+24XY4Z2+208X2Y2Z2+40XY4Z+64X3YZ+32X2Y2Z+32XY3Z+16XY2Z2+48XYZ3+96X2YZ+128XY2Z+48XYZ2+80XYZ104X4Y8Z416X2Y12Z216X4Y8Z28X2Y8Z416XY12Z32X6Y4Z2168X2Y8Z224X2Y4Z616X2Y8Z8XY8Z248X4Y4Z224X2Y4Z464XY8Z32X3Y4Z40X2Y4Z224XY4Z348X2Y4Z24XY4Z2208X2Y2Z240XY4Z64X3YZ32X2Y2Z32XY3Z16XY2Z248XYZ396X2YZ128XY2Z48XYZ280XYZ104*X^4*Y^8*Z^4+16*X^2*Y^12*Z^2+16*X^4*Y^8*Z^2+8*X^2*Y^8*Z^4+16*X*Y^12*Z+32*X^6*Y^4*Z^2+168*X^2*Y^8*Z^2+24*X^2*Y^4*Z^6+16*X^2*Y^8*Z+8*X*Y^8*Z^2+48*X^4*Y^4*Z^2+24*X^2*Y^4*Z^4+64*X*Y^8*Z+32*X^3*Y^4*Z+40*X^2*Y^4*Z^2+24*X*Y^4*Z^3+48*X^2*Y^4*Z+24*X*Y^4*Z^2+208*X^2*Y^2*Z^2+40*X*Y^4*Z+64*X^3*Y*Z+32*X^2*Y^2*Z+32*X*Y^3*Z+16*X*Y^2*Z^2+48*X*Y*Z^3+96*X^2*Y*Z+128*X*Y^2*Z+48*X*Y*Z^2+80*X*Y*Z

Algorithm definition

The algorithm ⟨6×20×20:1504⟩ is the (Kronecker) tensor product of ⟨2×4×5:32⟩ with ⟨3×5×4:47⟩.

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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