On Q-integral graphs with edge-degrees at most six

Autor:	Yoshio Sano, Jongyook Park
Rok vydání:	2019
Předmět:	Combinatorics Numerical Analysis Algebra and Number Theory 010102 general mathematics Discrete Mathematics and Combinatorics 010103 numerical & computational mathematics Geometry and Topology Mathematics::Spectral Theory 0101 mathematics Edge (geometry) 01 natural sciences Eigenvalues and eigenvectors Mathematics
Zdroj:	Linear Algebra and its Applications. 577:384-411
ISSN:	0024-3795
Popis:	Q-integral graphs are graphs whose signless Laplacians have only integral eigenvalues. The edge-degree of an edge is the number of edges adjacent to the edge. In 2008, S. K. Simic and Z. Stanic studied connected Q-integral graphs with edge-degrees at most five. In this paper, we study connected Q-integral graphs with edge-degrees at most six.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::508f63e7094f1d11bcc6e8a899010310 https://doi.org/10.1016/j.laa.2019.04.015 Zobrazit plný text záznamu Full Text from ScienceDirect