Description of fast matrix multiplication algorithm: ⟨16×18×28:4578⟩

Algorithm type

2⁢X8⁢Y12⁢Z8+3⁢X8⁢Y10⁢Z8+29⁢X8⁢Y8⁢Z8+4⁢X12⁢Y6⁢Z4+2⁢X4⁢Y14⁢Z4+9⁢X12⁢Y4⁢Z4+6⁢X8⁢Y4⁢Z8+15⁢X4⁢Y12⁢Z4+6⁢X4⁢Y8⁢Z8+6⁢X4⁢Y4⁢Z12+3⁢X2⁢Y16⁢Z2+2⁢X8⁢Y6⁢Z4+30⁢X4⁢Y10⁢Z4+7⁢X4⁢Y6⁢Z8+6⁢X2⁢Y14⁢Z2+X8⁢Y4⁢Z4+40⁢X4⁢Y8⁢Z4+26⁢X4⁢Y4⁢Z8+4⁢X2⁢Y10⁢Z4+10⁢X6⁢Y6⁢Z2+57⁢X4⁢Y6⁢Z4+24⁢X2⁢Y10⁢Z2+4⁢X2⁢Y8⁢Z4+4⁢X2⁢Y6⁢Z6+18⁢X4⁢Y5⁢Z4+10⁢X6⁢Y4⁢Z2+4⁢X4⁢Y6⁢Z2+235⁢X4⁢Y4⁢Z4+25⁢X2⁢Y8⁢Z2+42⁢X2⁢Y6⁢Z4+4⁢X2⁢Y4⁢Z6+24⁢X6⁢Y3⁢Z2+12⁢X2⁢Y7⁢Z2+58⁢X6⁢Y2⁢Z2+4⁢X4⁢Y4⁢Z2+44⁢X4⁢Y2⁢Z4+126⁢X2⁢Y6⁢Z2+110⁢X2⁢Y4⁢Z4+44⁢X2⁢Y2⁢Z6+18⁢X⁢Y8⁢Z+12⁢X4⁢Y3⁢Z2+180⁢X2⁢Y5⁢Z2+42⁢X2⁢Y3⁢Z4+36⁢X⁢Y7⁢Z+6⁢X4⁢Y2⁢Z2+268⁢X2⁢Y4⁢Z2+208⁢X2⁢Y2⁢Z4+24⁢X⁢Y5⁢Z2+60⁢X3⁢Y3⁢Z+270⁢X2⁢Y3⁢Z2+144⁢X⁢Y5⁢Z+24⁢X⁢Y4⁢Z2+24⁢X⁢Y3⁢Z3+60⁢X3⁢Y2⁢Z+24⁢X2⁢Y3⁢Z+372⁢X2⁢Y2⁢Z2+150⁢X⁢Y4⁢Z+252⁢X⁢Y3⁢Z2+24⁢X⁢Y2⁢Z3+24⁢X3⁢Y⁢Z+24⁢X2⁢Y2⁢Z+48⁢X2⁢Y⁢Z2+216⁢X⁢Y3⁢Z+444⁢X⁢Y2⁢Z2+48⁢X⁢Y⁢Z3+168⁢X⁢Y2⁢Z+312⁢X⁢Y⁢Z2+36⁢X⁢Y⁢Z2X8Y12Z83X8Y10Z829X8Y8Z84X12Y6Z42X4Y14Z49X12Y4Z46X8Y4Z815X4Y12Z46X4Y8Z86X4Y4Z123X2Y16Z22X8Y6Z430X4Y10Z47X4Y6Z86X2Y14Z2X8Y4Z440X4Y8Z426X4Y4Z84X2Y10Z410X6Y6Z257X4Y6Z424X2Y10Z24X2Y8Z44X2Y6Z618X4Y5Z410X6Y4Z24X4Y6Z2235X4Y4Z425X2Y8Z242X2Y6Z44X2Y4Z624X6Y3Z212X2Y7Z258X6Y2Z24X4Y4Z244X4Y2Z4126X2Y6Z2110X2Y4Z444X2Y2Z618XY8Z12X4Y3Z2180X2Y5Z242X2Y3Z436XY7Z6X4Y2Z2268X2Y4Z2208X2Y2Z424XY5Z260X3Y3Z270X2Y3Z2144XY5Z24XY4Z224XY3Z360X3Y2Z24X2Y3Z372X2Y2Z2150XY4Z252XY3Z224XY2Z324X3YZ24X2Y2Z48X2YZ2216XY3Z444XY2Z248XYZ3168XY2Z312XYZ236XYZ2*X^8*Y^12*Z^8+3*X^8*Y^10*Z^8+29*X^8*Y^8*Z^8+4*X^12*Y^6*Z^4+2*X^4*Y^14*Z^4+9*X^12*Y^4*Z^4+6*X^8*Y^4*Z^8+15*X^4*Y^12*Z^4+6*X^4*Y^8*Z^8+6*X^4*Y^4*Z^12+3*X^2*Y^16*Z^2+2*X^8*Y^6*Z^4+30*X^4*Y^10*Z^4+7*X^4*Y^6*Z^8+6*X^2*Y^14*Z^2+X^8*Y^4*Z^4+40*X^4*Y^8*Z^4+26*X^4*Y^4*Z^8+4*X^2*Y^10*Z^4+10*X^6*Y^6*Z^2+57*X^4*Y^6*Z^4+24*X^2*Y^10*Z^2+4*X^2*Y^8*Z^4+4*X^2*Y^6*Z^6+18*X^4*Y^5*Z^4+10*X^6*Y^4*Z^2+4*X^4*Y^6*Z^2+235*X^4*Y^4*Z^4+25*X^2*Y^8*Z^2+42*X^2*Y^6*Z^4+4*X^2*Y^4*Z^6+24*X^6*Y^3*Z^2+12*X^2*Y^7*Z^2+58*X^6*Y^2*Z^2+4*X^4*Y^4*Z^2+44*X^4*Y^2*Z^4+126*X^2*Y^6*Z^2+110*X^2*Y^4*Z^4+44*X^2*Y^2*Z^6+18*X*Y^8*Z+12*X^4*Y^3*Z^2+180*X^2*Y^5*Z^2+42*X^2*Y^3*Z^4+36*X*Y^7*Z+6*X^4*Y^2*Z^2+268*X^2*Y^4*Z^2+208*X^2*Y^2*Z^4+24*X*Y^5*Z^2+60*X^3*Y^3*Z+270*X^2*Y^3*Z^2+144*X*Y^5*Z+24*X*Y^4*Z^2+24*X*Y^3*Z^3+60*X^3*Y^2*Z+24*X^2*Y^3*Z+372*X^2*Y^2*Z^2+150*X*Y^4*Z+252*X*Y^3*Z^2+24*X*Y^2*Z^3+24*X^3*Y*Z+24*X^2*Y^2*Z+48*X^2*Y*Z^2+216*X*Y^3*Z+444*X*Y^2*Z^2+48*X*Y*Z^3+168*X*Y^2*Z+312*X*Y*Z^2+36*X*Y*Z

Algorithm definition

The algorithm ⟨16×18×28:4578⟩ is the (Kronecker) tensor product of ⟨2×2×2:7⟩ with ⟨8×9×14:654⟩.

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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