| σ-多项式的根 |
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| 引用本文： | 赵海兴,刘儒英,李学良.σ-多项式的根[J].高校应用数学学报(英文版),2003,18(2). |
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| 作者姓名： | 赵海兴 刘儒英 李学良 |
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| 作者单位： | Zhao Haixing 1，2 Liu Ruying 2 Li Xueliang 31 Dept. of Computer Science and Engineering，Northwestern Polytechnical Univ.，Xian 710072，China. 2 Dept. of Math.，Qinghai Normal Univ.，Xining 810008，China. 3 Center for Combinatorics，Nankai Univ.，Tianjin 300071，China. |
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| 基金项目： | Supported by the National Natural Science Foundation of China(1 0 0 6 1 0 0 3 ) and the Science Founda-tion of the State Education Ministry of China |
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| 摘 要： | § 1 IntroductionAll graphs considered are finite and simple.Undefined notation and terminology willconform to those in1 ] .Let V(G) ,E(G) and Gdenote the vertex set,edge set and complement of a graph G,respectively. Let P(G,x) andσ(G,x) denote the chromatic polynomial andσ-polynomialof G,respectively.The log-concavity property of the chromatic polynomial andσ-polyno-mial of G has a close relation to their roots,which were well studied in2 ,3] .Results onthe study of the roots of…
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| 关 键 词： | roots σ-polynomial adjoint polynomial. |
THE ROOTS OF σ-POLYNOMIALS |
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| Abstract: | |
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| Keywords: | roots ad joint polynomial |
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