CHARACTERISTIC, ADMITTANCE AND MATCHING POLYNOMIALS OF AN ANTIREGULAR GRAPH

被引:10
|
作者
Munarini, Emanuele [1 ]
机构
[1] Politecn Milan, I-20133 Milan, Italy
关键词
Maximally nonregular graphs; graph eigenvalues; graph energy; Chebyshev polynomials; Stirling numbers; ENERGY;
D O I
10.2298/AADM0901157M
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
An antiregular graph is a simple graph with the maximum number of vertices with different degrees. In this paper we study the characteristic polynomial, the admittance (or Laplacian) polynomial and the matching polynomial of a connected antiregular graph. For these polynomials we obtain recurrences and explicit formulas. We also obtain some spectral properties. In particular, we prove an interlacing property for the eigenvalues and we give some bounds for the energy.
引用
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页码:157 / 176
页数:20
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