Yanna Wang, Rundan Xing, Bo Zhou, Fengming Dong (2017)
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The distance spectral radius of a connected graph is the largest eigenvalue of its distance matrix. We determine the unique non-starlike non-caterpillar tree with maximal distance spectral radius.
Irene Rousseau (2001)
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Mostafa Mbekhta, Jaroslav Zemánek (2007)
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Rakhmatullina, L.F. (1997)
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Robert Grone, Peter D. Johnson, Jr. (1982)
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Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 15A29. In this paper we introduced a notion of the generalized spectral function for a matrix J = (gk,l)k,l = 0 Ґ, gk,l О C, such that gk,l = 0, if |k-l | > N; gk,k+N = 1, and gk,k-N № 0. Here N is a fixed positive integer. The direct and inverse spectral problems for such matrices are stated and solved. An integral representation for the generalized spectral function is obtained.