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author:

Chang, A (Chang, A.) [1] (Scholars:常安) | Tian, F (Tian, F.) [2]

Indexed by:

EI Scopus SCIE

Abstract:

Let U+(2k) be the set of all unicyclic graphs on 2k (k greater than or equal to 2) vertices with perfect matchings. Let U-2k(1) be the graph on 2k vertices obtained from C-3 by attaching a pendant edge and k - 2 paths of length 2 at one vertex of C-3; Let U-2k(2) be the graph on 2k vertices obtained from 2k C-3 by adding a pendant edge at each vertex together with k - 3 paths of length 2 at one of three vertices. In this paper, we prove that U-2k(1) and U-2k(2) have the largest and the second largest spectral radius among the graphs in U+ (2k) when k not equal 3. (C) 2003 Elsevier Inc. All rights reserved.

Keyword:

perfect matching spectral radius unicyclic graphs

Community:

  • [ 1 ] Fuzhou Univ, Dept Math, Fujian 350002, Peoples R China
  • [ 2 ] Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100080, Peoples R China

Reprint 's Address:

  • 常安

    [Chang, A]Fuzhou Univ, Dept Math, Fujian 350002, Peoples R China

Email:

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Source :

LINEAR ALGEBRA AND ITS APPLICATIONS

ISSN: 0024-3795

Year: 2003

Volume: 370

Page: 237-250

0 . 6 5 6

JCR@2003

1 . 0 0 0

JCR@2023

ESI Discipline: MATHEMATICS;

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 63

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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