bettiSmallCover -- Compute the betti numbers of a small cover

Synopsis

Usage:

bettiSmallCover(k,N)

bettiSmallCover(N)
Inputs:
- k, an integer,
- N, a small cover,
Outputs:
- an integer,
- a list,

Description

Compute the betti numbers of a small cover. If a dimension k is specified, then only the k-th betti number of N is computed. If no dimension is specified, all the betti numbers between 0 and the dimension of N are computed.

Ways to use bettiSmallCover :

bettiSmallCover(SmallCover)
bettiSmallCover(ZZ,SmallCover)

For the programmer

The object bettiSmallCover is a method function.