Extremal graphs for the sum of the two largest signless Laplacian eigenvalues
Let G be a simple graph on n vertices and e(G) edges. Consider the signless Laplacian, Q(G) = D + A, where A is the adjacency matrix and D is the diagonal matrix of the vertices degree of G. Let q1(G) and q2(G) be the first and the second largest eigenvalues of Q(G), respectively, and denote by S+ n...
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| Other Authors: | , , |
| Format: | article |
| Language: | eng |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10773/16230 |
| Country: | Portugal |
| Oai: | oai:ria.ua.pt:10773/16230 |