OTHERS_CITABLE On Generalized Coprime Graphs Paul Erdos defined the concept of coprime graph and studied about cycles in coprime graphs. In this paper this concept is generalized and a new graph called Generalized coprime graph is introduced. Having observed certain basic properties of the new graph it is proved that the chromatic number and the clique number of some generalized coprime graphs are equal. http://ijmsi.ir/article-1-319-en.pdf 2014-11-04T10:20:15 1 6 10.7508/ijmsi.2014.02.001 Coprime graph Semi-perfect Clique number Chromatic number. S. Mutharasu skannanmunna@yahoo.com 1 Manonmaniam Sundaranar University AUTHOR N. Mohamed Rilwan rilwan2020@gmail.com 2 Manonmaniam Sundaranar University AUTHOR M. K. Angel Jebitha angel_jebitha@yahoo.co.in 3 Manonmaniam Sundaranar University AUTHOR T. Tamizh Chelvam tamche59@gmail.com 4 AUTHOR
OTHERS_CITABLE Local Cohomology with Respect to a Cohomologically Complete Intersection Pair of Ideals Let \$(R,fm,k)\$ be a local Gorenstein ring of dimension \$n\$. Let \$H_{I,J}^i(R)\$ be the  local cohomology with respect to a pair of ideals \$I,J\$ and \$c\$ be the \$inf{i|H_{I,J}^i(R)neq0}\$. A pair of ideals \$I, J\$ is called cohomologically complete intersection if \$H_{I,J}^i(R)=0\$ for all \$ineq c\$. It is shown that, when \$H_{I,J}^i(R)=0\$ for all \$ineq c\$, (i) a minimal injective resolution of \$H_{I,J}^c(R)\$ presents like that of a Gorenstein ring (ii) \$Hom_R(H_{I,J}^c(R),H_{I,J}^c(R))simeq R\$, where \$(R,fm)\$ is a complete ring. Also we get an estimate of the  dimension of \$H_{I,J}^i(R)\$. http://ijmsi.ir/article-1-640-en.pdf 2014-11-04T10:20:15 7 13 10.7508/ijmsi.2014.02.002 Vanishing Local cohomology Gorenstein ring. A. Pour Eshmanan Talemi poureshmanan@iaurasht.ac.ir 1 AUTHOR A. Tehranian tehranian@srbiau.ac.ir 2 AUTHOR
OTHERS_CITABLE Strongly almost ideal convergent sequences in a locally convex space defined by Musielak-Orlicz function In this article, we introduce a new class of ideal convergent sequence spaces using an infinite matrix, Musielak-Orlicz function and a new generalized difference matrix in locally convex spaces. We investigate some linear topological structures and algebraic properties of these spaces. We also give some relations related to these sequence spaces. http://ijmsi.ir/article-1-522-en.pdf 2014-11-04T10:20:15 15 35 10.7508/ijmsi.2014.02.003 \$I\$-convergence difference space Musielak-Orlicz function. B. Hazarika bh_rgu@yahoo.co.in 1 Rajiv Gandhi University AUTHOR
OTHERS_CITABLE The p-median and p-center Problems on Bipartite Graphs Let \$G\$ be a bipartite graph. In this paper we consider the two kind of location problems namely \$p\$-center and \$p\$-median problems on bipartite graphs. The \$p\$-center and \$p\$-median problems asks to find a subset of vertices of cardinality \$p\$, so that respectively the maximum and sum of the distances from this set to all other vertices in \$G\$ is minimized. For each case we present some properties to find exact solutions. http://ijmsi.ir/article-1-641-en.pdf 2014-11-04T10:20:15 37 43 10.7508/ijmsi.2014.02.004 Location theory \$p\$-median \$p\$-center Bipartite graphs. J. Fathali fathali@shahroodut.ac.ir 1 AUTHOR N. Jafari Rad n.jafarirad@shahroodut.ac.ir 2 AUTHOR S. Rahimi Sherbaf srahimi@shahroodut.ac.ir 3 AUTHOR
OTHERS_CITABLE Chromaticity of Turan Graphs with At Most Three Edges Deleted Let \$P(G,lambda)\$ be the chromatic polynomial of a graph \$G\$. A graph \$G\$ ischromatically unique if for any graph \$H\$, \$P(H, lambda) = P(G,lambda)\$ implies \$H\$ is isomorphic to \$G\$. In this paper, we determine the chromaticity of all Tur'{a}n graphs with at most three edges deleted. As a by product, we found many families of chromatically unique graphs and chromatic equivalence classes of graphs. http://ijmsi.ir/article-1-642-en.pdf 2014-11-04T10:20:15 45 64 10.7508/ijmsi.2014.02.005 Chromatic polynomial Chromatic uniqueness Turan graph. G.-C. Lau laugc@johor.uitm.edu.my 1 AUTHOR Y.-H. Peng yhpeng@fsas.upm.edu.my 2 AUTHOR S. Alikhani alikhani@yazd.ac.ir 3 AUTHOR
OTHERS_CITABLE A Semidefinite Optimization Approach to Quadratic Fractional Optimization with a Strictly Convex Quadratic Constraint In this paper we consider a fractional optimization problem that minimizes the ratio of two quadratic functions subject to a strictly convex quadratic constraint. First using the extension of Charnes-Cooper transformation, an equivalent homogenized quadratic reformulation of the problem is given. Then we show that under certain assumptions, it can be solved to global optimality using semidefinite optimization relaxation in polynomial time. http://ijmsi.ir/article-1-643-en.pdf 2014-11-04T10:20:15 65 71 10.7508/ijmsi.2014.02.006 Quadratic fractional optimization Semidefinite optimization relaxation Global optimization. M. Salahi salahim@guilan.ac.ir 1 AUTHOR S. Fallahi saeedf808@gmail.com 2 AUTHOR
OTHERS_CITABLE On Some Fractional Systems of Difference Equations This paper deal with the solutions of the systems of difference equations \$\$x_{n+1}=frac{y_{n-3}y_nx_{n-2}}{y_{n-3}x_{n-2}pm y_{n-3}y_n pm y_nx_{n-2}}, ,y_{n+1}=frac{y_{n-2}x_{n-1}}{ 2y_{n-2}pm x_{n-1}},,nin mathbb{N}_{0},\$\$ where \$mathbb{N}_{0}=mathbb{N}cup left{0right}\$, and initial values \$x_{-2},, x_{-1},,x_{0},,y_{-3},,y_{-2},,y_{-1},,y_{0}\$ are non-zero real numbers. http://ijmsi.ir/article-1-524-en.pdf 2014-11-04T10:20:15 73 86 10.7508/ijmsi.2014.02.007 System of difference equations Form of the solutions Periodicity. N. Touafek nouressadat_touafek@yahoo.com 1 Jijel University AUTHOR
OTHERS_CITABLE Some Results on Convexity and Concavity of Multivariate Copulas This paper provides some results on different types of convexity and concavity in the class of multivariate copulas. We also study their properties and provide several examples to illustrate our results. http://ijmsi.ir/article-1-644-en.pdf 2014-11-04T10:20:15 87 100 10.7508/ijmsi.2014.02.008 Componentwise concavity Copula Quasi-concavity Schur-concavity. A. Dolati adolati@yazd.ac.ir 1 AUTHOR A. Dehgan Nezhad anezhad@yazd.ac.ir 2 AUTHOR
OTHERS_CITABLE Application of the Norm Estimates for Univalence of Analytic Functions By using norm estimates of the pre-Schwarzian derivatives for certain family of analytic functions, we shall give simple sufficient conditions for univalence of analytic functions. http://ijmsi.ir/article-1-377-en.pdf 2014-11-04T10:20:15 101 108 10.7508/ijmsi.2014.02.009 Starlike functions Differential subordination Integral operators. R. Aghalary 1 AUTHOR
OTHERS_CITABLE On the Ultramean Construction We use the ultramean construction to prove linear compactness theorem. We also extend the Rudin-Keisler ordering to maximal probability charges and characterize it by embeddings of power ultrameans. http://ijmsi.ir/article-1-391-en.pdf 2014-11-04T10:20:15 109 119 10.7508/ijmsi.2014.02.010 Continuous logic Ultramean Linear compactness Rudin-Keisler ordering. M. Bagheri bagheri@modares.ac.ir 1 Tarbiat-Modares AUTHOR
CASE_STUDY ABSTRACTS IN PERSIAN - Vol. 9, No. 2 Please see the full text contains the Pesian abstracts for this volume. http://ijmsi.ir/article-1-843-en.pdf 2016-01-27T10:20:15 121 131 Name of Authors in This Volume 1 AUTHOR