Graph energy change due to edge deletion

By J. Day, Wasin So. 2008

95 citations recorded by the source corpus.

The energy of a graph is the sum of the singular values of its adjacency matrix. We are interested in how the energy of a graph changes when edges are deleted. Examples show that all cases are possible: increased, decreased, unchanged. Our goal is to find possible graph theoretical descriptions and to provide an infinite family of graphs for each case. The main tool is a singular value inequality for complementary submatrices and its equality case.

Subfields: Computational Theory and Mathematics, Geometry and Topology

View Paper: https://www.semanticscholar.org/paper/21710a0a8f6cc491db6fee8fb70a5f7523ab3a26

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In Geometry and Topology

  1. Saieed Akbari

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