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On the Degeneracy of the Orbit Polynomial and Related Graph Polynomials

Authors :
Ghorbani, Modjtaba
Dehmer, Matthias
Emmert-Streib, Frank
Tampere University
Computing Sciences
Source :
Symmetry, Vol 12, Iss 1643, p 1643 (2020), Symmetry, Volume 12, Issue 10
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

The orbit polynomial is a new graph counting polynomial which is defined as OG(x)=&sum<br />i=1rx|Oi|, where O1, &hellip<br />Or are all vertex orbits of the graph G. In this article, we investigate the structural properties of the automorphism group of a graph by using several novel counting polynomials. Besides, we explore the orbit polynomial of a graph operation. Indeed, we compare the degeneracy of the orbit polynomial with a new graph polynomial based on both eigenvalues of a graph and the size of orbits.

Details

Language :
English
ISSN :
20738994
Volume :
12
Issue :
1643
Database :
OpenAIRE
Journal :
Symmetry
Accession number :
edsair.dedup.wf.001..d7e1ccc39c7de6b030173628f96529a3