Author:
Watanabe Mamoru,Schwenk Allen J.
Abstract
AbstractIn this note we determine which of the trees homeomorphic to a star have a spectrum consisting entirely of integers. We also specify the integral double stars, and we consider the problem of trees with more complicated structure.Subject classification (Amer. Math. Soc. (MOS) 1970): 05 C 05.
Publisher
Cambridge University Press (CUP)
Reference9 articles.
1. Schwenk A. J. (1973), The spectrum of a graph (Ph.D. Thesis, University of Michigan).
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3. Cospectral Graphs and Digraphs
4. GRAPH THEORY
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