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multiplyGW -- the tensor product of two Grothendieck-Witt classes

Description

This computes the tensor product $\beta\otimes\gamma$ of the Grothendieck-Witt classes beta and gamma.

i1 : M = matrix(QQ, {{1,0},{0,1}});

              2       2
o1 : Matrix QQ  <-- QQ
i2 : N = matrix(QQ, {{1,2},{2,5}});

              2       2
o2 : Matrix QQ  <-- QQ
i3 : beta = makeGWClass M;
i4 : gamma = makeGWClass N;
i5 : multiplyGW(beta, gamma)

o5 = | 1 2 0 0 |
     | 2 5 0 0 |
     | 0 0 1 2 |
     | 0 0 2 5 |

o5 : GrothendieckWittClass

See also

Ways to use multiplyGW:

  • multiplyGW(GrothendieckWittClass,GrothendieckWittClass)

For the programmer

The object multiplyGW is a method function.


The source of this document is in A1BrouwerDegrees/Documentation/GrothendieckWittClassesDoc.m2:150:0.