Title

All primitive strongly regular graphs except four are hyperenergetic

Authors

Authors

P. Panigrahi;R. N. Mohapatra

Comments

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Abbreviated Journal Title

Appl. Math. Lett.

Keywords

Strongly regular graphs; Eigenvalues; Graph energy; Mathematics, Applied

Abstract

The energy of a graph G, denoted by E(G), is the sum of the absolute values of the eigenvalues of G. If G is a graph on n vertices and E(G) > 2(n - 1), then G is called a hyperenergetic graph. In this paper, we prove that all primitive strongly regular graphs except srg(5, 2, 0, 1), srg(9, 4, 1, 2), srg(10, 3, 0, 1), and srg(16, 5, 0, 2) are hyperenergetic. (C) 2011 Elsevier Ltd. All rights reserved.

Journal Title

Applied Mathematics Letters

Volume

24

Issue/Number

12

Publication Date

1-1-2011

Document Type

Article

Language

English

First Page

1995

Last Page

1997

WOS Identifier

WOS:000294886000005

ISSN

0893-9659

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