HomWithComponents -- computes Hom, preserving direct sum information

Usage:

H = Hom(M,N)
Inputs:
- M, a module,
- N, a module,
Outputs:
- H, a module,

Description

If M and/or N are direct sum modules (isDirectSum M == true) then H is the direct sum of the Homs between the components. This SHOULD be built into Hom(M,N), but isn't as of M2, v. 1.7

Ways to use HomWithComponents:

HomWithComponents(Module,Module)

For the programmer

The object HomWithComponents is a method function.

The source of this document is in CompleteIntersectionResolutions.m2:2645:0.

HomWithComponents -- computes Hom, preserving direct sum information

Description

See also

Ways to use HomWithComponents:

For the programmer