Graphs determined by their (signless) Laplacian spectra
نویسندگان
چکیده
منابع مشابه
Graphs determined by their (signless) Laplacian spectra
Let S(n, c) = K1∨(cK2∪(n−2c−1)K1), where n ≥ 2c+1 and c ≥ 0. In this paper, S(n, c) and its complement are shown to be determined by their Laplacian spectra, respectively. Moreover, we also prove that S(n, c) and its complement are determined by their signless Laplacian spectra, respectively.
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Thewheel graph, denoted byWn+1, is the graph obtained from the circuit Cn with n vertices by adding a new vertex and joining it to every vertex of Cn. In this paper, the wheel graph Wn+1, except for W7, is proved to be determined by its Laplacian spectrum, and a graph cospectral with the wheel graphW7 is given. © 2009 Elsevier Ltd. All rights reserved.
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ژورنال
عنوان ژورنال: The Electronic Journal of Linear Algebra
سال: 2011
ISSN: 1081-3810
DOI: 10.13001/1081-3810.1428