Macaulay2 » Documentation
Packages » CpMackeyFunctors :: Hom(CpMackeyFunctor,CpMackeyFunctor)
next | previous | forward | backward | up | index | toc

Hom(CpMackeyFunctor,CpMackeyFunctor) -- computes the Hom group between two Cp Mackey functors

Description

Given two Mackey functors $M$ and $N$, the set of Mackey functor homomorphisms from $M$ to $N$ forms an abelian group under pointwise addition.

i1 : M = makeBurnsideMackeyFunctor(2);
i2 : N = makeUnderlyingFreeMackeyFunctor(2);
i3 : Hom(M,N)

o3 = image | 1 |
           | 1 |
           | 1 |
           | 2 |

                               4
o3 : ZZ-module, submodule of ZZ

See also

Ways to use this method:


The source of this document is in CpMackeyFunctors/Documentation/HomGroupDoc.m2:60:0.