نتایج جستجو برای: integral graphs

تعداد نتایج: 211307  

2017
Parama Dutta Rajat Kanti Nath

In this paper, we compute the Laplacian spectrum of non-commuting graphs of some classes of finite non-abelian groups. Our computations reveal that the non-commuting graphs of all the groups considered in this paper are L-integral. We also obtain some conditions on a group G so that its non-commuting graph is L-integral.

2007
Roland Bacher Pierre de la Harpe

The set of integral ows on a nite graph ? is naturally an integral lattice 1 (?) in the Euclidean space Ker((1) of harmonic real-valued functions on the edge set of ?. Various properties of ? (bipartite character, girth, complexity, separability) are shown to correspond to properties of 1 (?) (parity, minimal norm, determinant, decomposability). The dual lattice of 1 (?) is identiied to the int...

1995
Roland Bacher Pierre de la Harpe

The set of integral ows on a nite graph ? is naturally an integral lattice 1 (?) in the Euclidean space Ker((1) of harmonic real-valued functions on the edge set of ?. Various properties of ? (bipartite character, girth, complexity, separability) are shown to correspond to properties of 1 (?) (parity, minimal norm, determinant, decomposability). The dual lattice of 1 (?) is identiied to the int...

Journal: :Linear Algebra and its Applications 2003

Journal: :Tamkang Journal of Mathematics 2010

Journal: :The Electronic Journal of Combinatorics 2008

Journal: :Czechoslovak Mathematical Journal 2016

Journal: :Linear Algebra and its Applications 2007

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