Lower bounds for the algebraic connectivity of graphs with specified subgraphs
The second smallest eigenvalue of the Laplacian matrix of a graph G is called the algebraic connectivity and denoted by a(G). We prove thata(G)>π2/3(p(12g(n1, n2, ..., np)2 − π2)/4g(n1, n2, ..., np)4 + 4(q − p)(3g(np + 1, np + 2, ..., nq)2 − π2)/g(np + 1, np + 2, ..., nq)4),holds for every non-tr...
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Format: | EJournal Article |
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GTA Research Group, Univ. Newcastle, Indonesian Combinatorics Society and ITB,
2021-10-16.
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Online Access: | Get Fulltext |
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