مرور Volume 05, Issue 01 بر اساس عنوان

  • Common fixed point results on vector metric spaces 

    Soleimani Rad, G.؛ Altun, I. (Central Tehran Branch, Islamic Azad University, 2016-02-01)
    In this paper we consider the so called a vector metric space, which is a generalization of metric space, where the metric is Riesz space valued. We prove some common fixed point theorems for three mappings in this space. ...

  • Existence and multiplicity of positive solutions for a class of semilinear elliptic system with nonlinear boundary conditions 

    Yaghoobi, F. M.؛ Shamshiri, J. (Central Tehran Branch, Islamic Azad University, 2016-02-01)
    This study concerns the existence and multiplicity of positive weak solutions for a class of semilinear elliptic systems with nonlinear boundary conditions. Our results is depending on the local minimization method on the ...

  • F-Closedness in Bitopological Spaces 

    Nasef, A. A.؛ Azzam, A. (Central Tehran Branch, Islamic Azad University, 2016-02-01)
    The purpose of this paper is to introduce the concept of pairwise F-closedness in bitopological spaces. This space contains both of pairwise strongcompactness and pairwise S-closedness and contained in pairwise quasi ...

  • A note on quasi irresolute topological groups 

    Oner, T.؛ Ozek, A. (Central Tehran Branch, Islamic Azad University, 2016-02-01)
    In this study, we investigate the further properties of quasi irresolute topological groups defi ned in [20]. We show that if a group homomorphism f between quasi irresolute topological groups is irresolute at $e_G$, then ...

  • Probability of having $n^{th}$-roots and n-centrality of two classes of groups 

    Hashemi, M.؛ Polkouei, M. (Central Tehran Branch, Islamic Azad University, 2016-02-01)
    In this paper, we consider the finitely 2-generated groups $K(s,l)$ and $G_m$ as follows:$$K(s,l)=langle a,b|ab^s=b^la, ba^s=a^lbrangle,G_m=langle a,b|a^m=b^m=1, {[a,b]}^a=[a,b], {[a,b]}^b=[a,b]rangle$$ 

  • Recognition by prime graph of the almost simple group PGL(2, 25) 

    Mahmoudifar, A. (Central Tehran Branch, Islamic Azad University, 2016-02-01)
    Throughout this paper, every groups are fi nite. The prime graph of a group $G$ is denoted by $Gamma(G)$. Also $G$ is called recognizable by prime graph if for every fi nite group $H$ with $Gamma(H) = Gamma(G)$, we conclude ...

  • Subcategories of topological algebras 

    Gompa, V. L. (Central Tehran Branch, Islamic Azad University, 2016-02-01)
    In addition to exploring constructions and properties of limits and colimits in categories of topological algebras, we study special subcategories of topological algebras and their properties. In particular, under certain ...