| Authors | سیده الهام قاسمیان,غلامحسین فتح تبار فیروزجائی |
|---|---|
| Conference Title | The Second Conference on Computational Group Theory, Computational Number Theory and Applications, |
| Holding Date of Conference | 2015-9-12 |
| Event Place | کاشان |
| Presentation | SPEECH |
| Conference Level | National Conferences |
Abstract
Let G = (G;s) be a signed graph, where G = (V;E) is the underlying simple graph and s :E(G) to {-1, +1} 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.