پديدآورندگان :
E. Ghasemian e.ghasemian@yahoo.com Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Kashan,
Kashan, I. R. Iran; , G. H. Fath-Tabar fathtabar@kashanu.ac.ir Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Kashan,
Kashan, I. R. Iran.;
چكيده فارسي :
Let G = (G;s) be a signed graph, where G = (V;E) is the underlying simple graph and s :
E(G) →{±} is the sign function. In this paper we consider the spectral characterization
of signed graphs. We obtain some lower bounds for summation of absolute value of the A-
eigenvalues of signed graphs
