removeIsomorphicPosets -- returns a sub-list of non-isomorphic posets

Usage:

N = removeIsomorphicPosets L
Inputs:
- L, a list, containing posets
Outputs:
- N, a list, containing posets with non-isomorphic elements

Description

This method returns a sublist $N$ of $L$ containing the elements of $L$, in order, where the first instance of each isomorphism class is retained.

i1 : L = {chain 4, divisorPoset (2^3), booleanLattice 3, booleanLattice 2, product(3, i -> chain 2)};

i2 : removeIsomorphicPosets L

o2 = {Relation Matrix: | 1 1 1 1 |, Relation Matrix: | 1 1 1 1 1 1 1 1 |,
                       | 0 1 1 1 |                   | 0 1 0 1 0 1 0 1 | 
                       | 0 0 1 1 |                   | 0 0 1 1 0 0 1 1 | 
                       | 0 0 0 1 |                   | 0 0 0 1 0 0 0 1 | 
                                                     | 0 0 0 0 1 1 1 1 |
                                                     | 0 0 0 0 0 1 0 1 |
                                                     | 0 0 0 0 0 0 1 1 |
                                                     | 0 0 0 0 0 0 0 1 |
     ------------------------------------------------------------------------
     Relation Matrix: | 1 1 1 1 |}
                      | 0 1 0 1 |
                      | 0 0 1 1 |
                      | 0 0 0 1 |

o2 : List

Ways to use removeIsomorphicPosets:

removeIsomorphicPosets(List)

For the programmer

The object removeIsomorphicPosets is a method function.

The source of this document is in Posets.m2:3260:0.

removeIsomorphicPosets -- returns a sub-list of non-isomorphic posets

Description

See also

Ways to use removeIsomorphicPosets:

For the programmer