smallCover -- Create a small cover

Synopsis

Usage:

smallCover(K,chi)
Inputs:
- K, an abstract simplicial complex,
- chi, a matrix,
Outputs:
- a small cover,

Description

Create a small cover over K with characteristic matrix chi. If chi is not characteristic for K, then an error is returned. The entries of chi are automatically converted to ZZ/2 entries, if they not already so.

For the programmer

The object smallCover is a method function.