مرور Volume 03, Issue 03 بر اساس عنوان

در حال نمایش موارد 1 - 4 از 4

  • Higher rank numerical ranges of rectangular matrix polynomials 

    Aghamollaei, Gh.؛ Zahraei, M. (Central Tehran Branch, Islamic Azad University, 2014-09-01)
    In this paper, the notion of rank-k numerical range of rectangular complex matrix polynomials are introduced. Some algebraic and geometrical properties are investigated. Moreover, for ϵ > 0; the notion of Birkhoff-James ...

  • Solution of the first order fuzzy differential equations with generalized differentiability 

    Jamshidi, L.؛ Allahviranloo, T. (Central Tehran Branch, Islamic Azad University, 2014-09-01)
    In this paper, we study first order linear fuzzy differential equations with fuzzy coefficient and initial value. We use the generalized differentiability concept and apply the exponent matrix to present the general form ...

  • Topological number for locally convex topological spaces with continuous semi-norms 

    Rahimi, M.؛ Vaezpour, S. M. (Central Tehran Branch, Islamic Azad University, 2014-09-01)
    In this paper we introduce the concept of topological number for locally convex topological spaces and prove some of its properties. It gives some criterions to study locally convex topological spaces in a discrete approach.

  • Tripled coincidence point under ϕ-contractions in ordered $G_b$-metric spaces 

    Jalal Shahkoohi, R.؛ Kazemipour, S. A.؛ Rajabi Eyvali, A. (Central Tehran Branch, Islamic Azad University, 2014-09-01)
    In this paper, tripled coincidence points of mappings satisfying  $psi$-contractive conditions in the framework of partially ordered $G_b$-metric spaces are obtained. Our results extend the results of Aydi et al. [H. Aydi, ...