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A deletion-contraction algorithm for the characteristic polynomial of a multigraph

Published online by Cambridge University Press:  14 November 2011

Peter Rowlinson
Affiliation:
Department of Mathematics, University of Stirling, Stirling FK9 4LA, Scotland

Synopsis

The characteristic polynomial of a finite multigraph G is expressed in terms of characteristic polynomials oflocal modifications of G. The resulting formula is used to investigate the largest eigenvalues of certain theta graphs.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1987

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