On Competition Polysemy and \(m\)-Competition Polysemy

Yongqiang Zhao1, Gerard J.Chang2,3,4
1Department of Mathematics Shijiazhuang College Shijiazhuang 050035, P.R. China
2Department of Mathematics National Taiwan University Taipei 10617, Taiwan
3Taida Institute for Mathematical Sciences National Taiwan University Taipei 10617, Taiwan
4National Center for Theoretical Sciences Taipei Office, Taiwan

Abstract

In \(2004\), Fischermann et al. \([2]\) generalized bound polysemy to competition polysemy by using digraphs instead of posets. They provided a characterization of competition polysemic pairs and a characterization of the connected graphs \(G\) for which there exists a tree \(T\) such that \((G,T)\) is competition polysemic. In this paper, we continue to study the competition polysemy and characterize the connected graphs \(G\) for which there exists a triangle-free unicyclic graph \(G’\) such that \((G,G’)\) is competition polysemic. Furthermore,we generalize competition polysemy to \(m\)-competition polysemy and
prove a characterization of \(m\)-competition polysemic pairs.