A study on some combinatorial sets in partial semigroups
Combinatorics
2019-08-21 v3
Abstract
In this article, we investigate the image and preimage of the important combinatorial sets such as central sets, -sets, and -sets which play an important role in the study of combinatorics under certain partial semigroup homomorphism. Using that we prove certain results which deal with the existence of -set which are not central in partial semigroup framework.
Cite
@article{arxiv.1901.01858,
title = {A study on some combinatorial sets in partial semigroups},
author = {Arpita Ghosh},
journal= {arXiv preprint arXiv:1901.01858},
year = {2019}
}
Comments
Updated version. 14 pages. Comments are welcome! arXiv admin note: text overlap with arXiv:1809.01960, and with arXiv:1810.05097 by other authors