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Nullity and Bounds to the Nullity of Dendrimer Graphs | ||
| AL-Rafidain Journal of Computer Sciences and Mathematics | ||
| Article 7, Volume 10, Issue 4, 2013, Pages 71-86 PDF (711.25 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/csmj.2013.163548 | ||
| Authors | ||
| Khidir R. Sharaf; Didar A. Ali | ||
| Department of Mathematics faculty of Science, University of Zakho, Zakho - Kurdistan-Region, Iraq | ||
| Abstract | ||
| In this paper, a high zero-sum weighting is applied to evaluate the nullity of a dendrimer graph for some special graphs such as cycles, paths, complete graphs, complete bipartite graphs and star graphs. Finally, we introduce and prove a sharp lower and a sharp upper bound for the nullity of the coalescence graph of two graphs. | ||
| Keywords | ||
| Graph spectra; Nullity of graphs | ||
|
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