Results 131 to 140 of about 960 (155)
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The Signless p-Laplacian Spectral Radius of Graphs with Given Degree Sequences
Bulletin of the Malaysian Mathematical Sciences Society, 2023zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhouyang Chen +3 more
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On the signless Laplacian spectral radius of weighted digraphs
Discrete Optimization, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Weige Xi, Ligong Wang
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Sharp Bounds for the Signless Laplacian Spectral Radius of Uniform Hypergraphs
Bulletin of the Iranian Mathematical Society, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
He, Jun +3 more
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On the distance signless Laplacian spectral radius of graphs
Linear and Multilinear Algebra, 2013The distance signless Laplacian spectral radius of a connected graph G is the spectral radius of the distance signless Laplacian matrix of G, defined as where is the diagonal matrix of vertex transmissions of G and is the distance matrix of G. In this paper, we determine the graphs with minimum distance signless Laplacian spectral radius among the ...
Rundan Xing, Bo Zhou, Jianping Li
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Upper Bounds on the (Signless Laplacian) Spectral Radius of Irregular Weighted Graphs
Bulletin of the Malaysian Mathematical Sciences Society, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shuiqun Xie +3 more
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The signless Laplacian spectral radius of book-free graphs
Discrete MathematicsFor a positive integer \(k\), a book \(B_{k+1}\) is a graph consisting of \(k + 1\) triangles sharing a common edge. Let \(G\) be a \(B_{k+1}\)-free graph of order \(n \geq 49k^{2}-22k+4\). In this paper it is proved that the signless Laplacian spectral radius \(q(G) \leq (n+2k+\sqrt{(n-2k)^2+8k^2})/2\) with equality if and only if \(G = \overline{K_k}
Chen, Ming-Zhu +2 more
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BOUNDS FOR SIGNLESS LAPLACIAN SPECTRAL RADIUS
2018We consider weighted graphs, such as graphs where the edge weights are positive definite matrices of the same order in this paper. The signless Laplacian eigenvalues of a graph are the eigenvalues of the signless Laplacian matrix of a graph G. Then, we have give some bound and found different upper bounds for the signless Laplacian radius of weighted ...
Kabatas, Ulkunur +2 more
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Sharp bounds for the signless Laplacian spectral radius of digraphs
Applied Mathematics and Computation, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lang, Weiwei, Wang, Ligong
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Signless Laplacian Spectral Radius and Some Hamiltonian Properties of Graphs
Journal of Discrete Mathematical Sciences and Cryptography, 2015AbstractUsing upper bounds for the signless Laplacian spectral radius of graphs established by Yu et al. [9], Wang et al. [8], Liu et al. [7], and Li et al. [5], we in this note present sufficient conditions which are based on the signless Laplacian spectral radius for some Hamiltonian properties of graphs.
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On the signless Laplacian spectral radius of digraphs
2013Let G = (V, E) be a digraph with n vertices and m arcs without loops and multiarcs, V = {v(1), v(2), ... , v(n)}. Denote the outdegree and average 2-outdegree of the vertex v(i) by d(i)(+) and m(i)(+), respectively. Let A (G) be the adjacency matrix and D (G) = diag (d(1)(+), d(2)(+), ... , d(n)(+)) be the diagonal matrix with outdegree of the vertices
Bozkurt, S. Burcu, Bozkurt, Durmus
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