next | previous | forward | backward | up | top | index | toc | Macaulay2 web site
Macaulay2Doc :: ChainComplexMap

ChainComplexMap -- the class of all maps between chain complexes

Description

The usual algebraic operations are available: addition, subtraction, scalar multiplication, and composition. The identity map from a chain complex to itself can be produced with id. An attempt to add (subtract, or compare) a ring element to a chain complex will result in the ring element being multiplied by the appropriate identity map.

Functions and methods returning a chain complex map :

Methods that use a chain complex map :

For the programmer

The object ChainComplexMap is a type, with ancestor classes GradedModuleMap < MutableHashTable < HashTable < Thing.