声明
摘要
Abstract
Contents
Chapter 1 Introduction
§1.1 Preliminaries
§1.2 Studying background
Chapter 2 The issue on the Laplacian spectra
§2.1 Present status of ordering graphs
§2.2 Further ordering bicyclic graphs with respect to the Laplacian spectra radius
Chapter 3 The issue on the signless Laplacian spectra
§3.1 Present status of obtaining the upper bound of the graph spectra
§3.2 An upper bound of the sum of the first k largest signless Laplacian eigenvalues
参考文献
研究生期间发表的论文
致谢