期刊：
Ars Combinatoria,2010年97:241-248 ISSN：0381-7032
通讯作者：
Chen, Shubo
作者机构：
[Chen, Shubo] Hunan City Univ, Dept Math & Comp Sci, Yiyang 413000, Hunan, Peoples R China.;[Chen, Shubo] Cent S Univ, Coll Math, Changsha 410075, Hunan, Peoples R China.;[Zhou, Houqing] Shaoyang Univ, Dept Math, Shaoyang 422000, Hunan, Peoples R China.
通讯机构：
[Chen, Shubo] H;Hunan City Univ, Dept Math & Comp Sci, Yiyang 413000, Hunan, Peoples R China.
摘要：
The Zagreb indices are topological indices of graphs, which defined as, Mi(G) = Σv⋯V(G) (d(v))2, M2(G) = Σuv⋯V(G) (d(u)d(v)). In this paper, we determine the upper and lower bounds for the Zagreb indices of unicyclic graphs in terms of their order and girth. In each case, we characterize the extremal graphs.
作者机构：
[Xiao, Cui'e] Cent S Univ, Sch Math Sci & Comp Technol, Changsha 410075, Hunan, Peoples R China.;[Liu, Zhenhai] Guangxi Univ Nationalities, Sch Math & Comp Sci, Nanning 530006, Peoples R China.;[Xiao, Cui'e] Hunan City Univ, Dept Math & Computat Sci, Yiyang 413000, Peoples R China.
通讯机构：
[Liu, Zhenhai] G;Guangxi Univ Nationalities, Sch Math & Comp Sci, Nanning 530006, Peoples R China.
关键词：
Elliptic hemivariational inequality;Inverse coefficient problem;Existence of quasisolution
摘要：
This paper is devoted to a class of inverse coefficient problems for nonlinear elliptic hemivariational inequalities. The unknown coefficient of elliptic hemivariational inequalities depends on the gradient of the solution and belongs to a set of admissible coefficients. It is shown that the nonlinear elliptic hemivariational inequalities are uniquely solvable for the given class of coefficients. The result of existence of quasisolutions of the inverse problems is obtained.
期刊：
Information Technology Journal,2010年9(8):1725-1738 ISSN：1812-5638
通讯作者：
Qin, J.
作者机构：
[Qin, Jiaohua] School of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha, 410004, China;[Xiang, Xuyu; Xian Wang, Meng] Department of Mathematics and Computer, Hunan City University, Yiyang, 413000, China
通讯机构：
[Qin, J.] S;School of Computer and Information Engineering, Central South University of Forestry and Technology, China
期刊：
Information Technology Journal,2009年8(6):811-820 ISSN：1812-5638
通讯作者：
Sun, X.
作者机构：
[Niu, Changming; Qin, Jiaohua; Sun, Xingming; Xia, Zhihua] School of Computer and Communication, Hunan University, Changsha, 410082, China;[Sun, Xingming] YueluMountain, Changsha, Hunan, 410082, China;[Qin, Jiaohua] Department of Mathematics and Computer, Hunan City University, Yiyang, 413000, China
通讯机构：
[Sun, X.] Y;YueluMountain, Changsha, Hunan, 410082, China
关键词：
Feature selection;Information security;Local convergence;Similarity among individuals;Transformation of generations
期刊：
Information Technology Journal,2009年8(8):1281-1286 ISSN：1812-5638
通讯作者：
Qin, J.
作者机构：
[Xia, Zhihua; Xiang, Xuyu; Sun, Xingming; Qin, Jiaohua] School of Computer and Communication, Hunan University, No. 252, Lushan South Road, Yuelu District, Changsha, 410082, China;[Xiang, Xuyu; Qin, Jiaohua] Department of Mathematics and Computer, Hunan City University, Yiyang, 413000, China
通讯机构：
[Qin, J.] S;School of Computer and Communication, No. 252, Lushan South Road, Yuelu District, Changsha, 410082, China
