Journal of the Australian Mathematical Society · 1979 · 77 citations · 2 references
Natural SciencesMathematicsTopologyArithmetic GeometrySubject Classification
Abstract In 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.
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Selected topics in graph theory 3
Discrete Mathematics · 1989 · 668 citations
Cospectral Graphs and Digraphs
Frank Harary, Clarence King, Abbe Mowshowitz et al. · Bulletin of the London Mathematical Society · 1971 · 110 citations · Full text