H$^+$-Eigenvalues of Laplacian and Signless Laplacian Tensors
H$^+$-Eigenvalues of Laplacian and Signless Laplacian Tensors
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DOI:
10.4310/cms.2014.v12.n6.a3
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发表时间:
2013-03
期刊:
影响因子:
--
通讯作者:
L. Qi
中科院分区:
文献类型:
--
作者:
L. Qi
We propose a simple and natural definition for the Laplacian and the signless Laplacian tensors of a uniform hypergraph. We study their H$^+$-eigenvalues, i.e., H-eigenvalues with nonnegative H-eigenvectors, and H$^{++}$-eigenvalues, i.e., H-eigenvalues with positive H-eigenvectors. We show that each of the Laplacian tensor, the signless Laplacian tensor and the adjacency tensor has at most one H$^{++}$-eigenvalue, but has several other H$^+$-eigenvalues. We identify their largest and smallest H$^+$-eigenvalues, and establish some maximum and minimum properties of these H$^+$-eigenvalues. We then define analytic connectivity of a uniform hypergraph and discuss its application in edge connectivity.