Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4652953 | Electronic Notes in Discrete Mathematics | 2007 | 8 Pages |
Abstract
We show that for structures with at most two relations all finite maximal antichains in the homomorphism order correspond to finite homomorphism dualities. We also show that most finite maximal antichains in this order split.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics