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Normalized graph Laplacians for directed graphs
被引:46
作者:
Bauer, Frank
[1
]
机构:
[1] Max Planck Inst Math Sci, D-04103 Leipzig, Germany
关键词:
Directed graphs;
Normalized graph Laplace operator;
Eigenvalues;
Directed acyclic graphs;
Neighborhood graph;
EIGENVALUES;
MATRICES;
BOUNDS;
D O I:
10.1016/j.laa.2012.01.020
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We consider the normalized Laplace operator for directed graphs with positive and negative edge weights. This generalization of the normalized Laplace operator for undirected graphs is used to characterize directed acyclic graphs. Moreover, we identify certain structural properties of the underlying graph with extremal eigenvalues of the normalized Laplace operator. We prove comparison theorems that establish a relationship between the eigenvalues of directed graphs and certain undirected graphs. This relationship is used to derive eigenvalue estimates for directed graphs. Finally we introduce the concept of neighborhood graphs for directed graphs and use it to obtain further eigenvalue estimates. (C) 2012 Elsevier Inc. All rights reserved.
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页码:4193 / 4222
页数:30
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