Description of fast matrix multiplication algorithm: ⟨8×26×32:3920⟩

Algorithm type

6⁢X8⁢Y12⁢Z8+4⁢X8⁢Y10⁢Z8+14⁢X8⁢Y8⁢Z8+9⁢X4⁢Y16⁢Z4+4⁢X2⁢Y20⁢Z2+10⁢X4⁢Y14⁢Z4+6⁢X2⁢Y18⁢Z2+20⁢X4⁢Y12⁢Z4+5⁢X2⁢Y16⁢Z2+28⁢X4⁢Y10⁢Z4+13⁢X2⁢Y14⁢Z2+61⁢X4⁢Y8⁢Z4+17⁢X2⁢Y12⁢Z2+X4⁢Y8⁢Z2+43⁢X4⁢Y6⁢Z4+32⁢X2⁢Y10⁢Z2+X2⁢Y8⁢Z4+24⁢X4⁢Y5⁢Z4+148⁢X4⁢Y4⁢Z4+157⁢X2⁢Y8⁢Z2+24⁢X⁢Y10⁢Z+60⁢X2⁢Y7⁢Z2+36⁢X⁢Y9⁢Z+3⁢X4⁢Y2⁢Z4+155⁢X2⁢Y6⁢Z2+30⁢X⁢Y8⁢Z+168⁢X2⁢Y5⁢Z2+78⁢X⁢Y7⁢Z+393⁢X2⁢Y4⁢Z2+102⁢X⁢Y6⁢Z+6⁢X2⁢Y4⁢Z+42⁢X2⁢Y3⁢Z2+192⁢X⁢Y5⁢Z+6⁢X⁢Y4⁢Z2+474⁢X2⁢Y2⁢Z2+618⁢X⁢Y4⁢Z+18⁢X2⁢Y⁢Z2+210⁢X⁢Y3⁢Z+162⁢X⁢Y2⁢Z+540⁢X⁢Y⁢Z6X8Y12Z84X8Y10Z814X8Y8Z89X4Y16Z44X2Y20Z210X4Y14Z46X2Y18Z220X4Y12Z45X2Y16Z228X4Y10Z413X2Y14Z261X4Y8Z417X2Y12Z2X4Y8Z243X4Y6Z432X2Y10Z2X2Y8Z424X4Y5Z4148X4Y4Z4157X2Y8Z224XY10Z60X2Y7Z236XY9Z3X4Y2Z4155X2Y6Z230XY8Z168X2Y5Z278XY7Z393X2Y4Z2102XY6Z6X2Y4Z42X2Y3Z2192XY5Z6XY4Z2474X2Y2Z2618XY4Z18X2YZ2210XY3Z162XY2Z540XYZ6*X^8*Y^12*Z^8+4*X^8*Y^10*Z^8+14*X^8*Y^8*Z^8+9*X^4*Y^16*Z^4+4*X^2*Y^20*Z^2+10*X^4*Y^14*Z^4+6*X^2*Y^18*Z^2+20*X^4*Y^12*Z^4+5*X^2*Y^16*Z^2+28*X^4*Y^10*Z^4+13*X^2*Y^14*Z^2+61*X^4*Y^8*Z^4+17*X^2*Y^12*Z^2+X^4*Y^8*Z^2+43*X^4*Y^6*Z^4+32*X^2*Y^10*Z^2+X^2*Y^8*Z^4+24*X^4*Y^5*Z^4+148*X^4*Y^4*Z^4+157*X^2*Y^8*Z^2+24*X*Y^10*Z+60*X^2*Y^7*Z^2+36*X*Y^9*Z+3*X^4*Y^2*Z^4+155*X^2*Y^6*Z^2+30*X*Y^8*Z+168*X^2*Y^5*Z^2+78*X*Y^7*Z+393*X^2*Y^4*Z^2+102*X*Y^6*Z+6*X^2*Y^4*Z+42*X^2*Y^3*Z^2+192*X*Y^5*Z+6*X*Y^4*Z^2+474*X^2*Y^2*Z^2+618*X*Y^4*Z+18*X^2*Y*Z^2+210*X*Y^3*Z+162*X*Y^2*Z+540*X*Y*Z

Algorithm definition

The algorithm ⟨8×26×32:3920⟩ is the (Kronecker) tensor product of ⟨2×2×2:7⟩ with ⟨4×13×16:560⟩.

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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