|
This article is cited in 2 scientific papers (total in 2 papers)
RESEARCH ARTICLE
Semisymmetric $Z_{p}$-covers of the $C20$ graph
A. A. Talebi, N. Mehdipoor Faculty of Mathematics, University of Mazandaran, Iran
Abstract:
A graph $ X$ is said to be $G$-semisymmetric if it is regular and there exists a subgroup $G$ of $A := \operatorname{Aut}(X)$ acting transitively on its edge set but not on its vertex set. In the case of $G = A$, we call $ X$ a semisymmetric graph. Finding elementary abelian covering projections can be grasped combinatorially via a linear representation of automorphisms acting on the first homology group of the graph. The method essentially reduces to finding invariant subspaces of matrix groups over prime fields. In this study, by applying concept linear algebra, we classify the connected semisymmetric $z_{p}$-covers of the $C20$ graph.
Keywords:
invariant subspaces, homology group, $C20$ graph, semisymmetric graphs, regular covering, lifting automorphisms.
Received: 12.07.2016
Citation:
A. A. Talebi, N. Mehdipoor, “Semisymmetric $Z_{p}$-covers of the $C20$ graph”, Algebra Discrete Math., 31:2 (2021), 286–301
Linking options:
https://www.mathnet.ru/eng/adm801 https://www.mathnet.ru/eng/adm/v31/i2/p286
|
Statistics & downloads: |
Abstract page: | 50 | Full-text PDF : | 23 | References: | 21 |
|