Energy of a graph is never the square root of an odd integer

Applicable Analysis and Discrete Mathematics

Volumn 2, Issue 1, 2008, Pages 118-121

  Pirzada, S ^a   Gutman, I ^b  

^a UNIVERSITY OF KASHMIR   (India)

^b UNIVERSITY OF KRAGUJEVAC   (Serbia)

Author keywords

Graph energy; Graph spectrum

Indexed keywords

EID: 77949411388     PISSN: 14528630     EISSN: None     Source Type: Journal    
DOI: 10.2298/AADM0801118P     Document Type: Article

References (6)

1. R. B. Bapat, S. Pati: Energy of a graph is never an odd integer. Bull. Kerala Math. Assoc., 1 (2004), 129-132.
2. D. Cvetković, M. Doob, H. Sachs: Spectra of Graphs - Theory and Application. Academic Press, New York, 1980; 2nd revised ed.: Barth, Heidelberg, 1995.
3. I. Gutman: The energy of a graph. Ber. Math. Statist. Sekt. Forshungsz. Graz, 103 (1978), 1-22.
4. I. Gutman, O. E. Polansky: Mathematical Concepts in Organic Chemistry. Springer-Verlag, Berlin, 1986.
5. H. Hua, M. Wang: Unicyclic graphs with given number of pendent vertices and minimal energy. Lin. Algebra Appl., 426 (2007), 478-489.
6. V. Nikiforov: Graphs and matrices with maximal energy. J. Math. Anal. Appl., 327 (2007) 735-738.