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119 research outcomes, page 4 of 12
  • publication . Article . 2017
    Open Access
    Authors:
    Ferhan S¸ola Erduran; Ebru Yi˘git; Rabia Alar; Ayten Gezici;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    In this paper we introduced a new notion which is called soft fuzzy metric and examined some basic properties of soft fuzzy metric spaces. Besides, some topological structures of this new space such as; soft open and soft closed sets, soft interior and soft closure of a...

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  • publication . Article . 2020
    Open Access
    Authors:
    Nawel Abdesselam;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    In this paper, the boundary stabilization of Schr¨odinger equations with variable coefficients by nonlinear and memory feedback is considered. The approch adopted uses Riemannian geometry methods and multipliers techniques.©2020 All rights reserved.

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  • publication . Article . 2020
    Open Access
    Authors:
    Hariwan Fadhil M.Salih; Nechirvan Badal Ibrahim;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    Let G = (V, E) be a simple connected undirected graph. In this paper, we define generalized the divisor sum Tk-function of a graph which is the summation of the sum of divisor k-function of the degree of the vertices of a graph denoted by Tk(G) = P v2V(G) k(deg(v)) and ...

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  • publication . Article . 2017
    Open Access English
    Authors:
    Mohamed Elarabi Benattia; Belghaba Kacem;
    Publisher: Refaad

    In this paper, we are interested to develop a numerical method based on the Chebyshev wavelets for solving fractional order differential equations (FDEs). As a result of the presentation of Chebyshev wavelets, we highlight the operational matrix of the fractional order d...

  • publication . Article . 2018
    Open Access English
    Authors:
    Z. Kishka; M. Saleem; M. Abdalla; A. Elrawy;
    Publisher: Refaad

    In this paper, we define and study Hadmard and Kronecker products over matrix of matrices and their basic properties. Furthermore, we establish a connection the Hadamard product of matrix of matrices and the usual matrix of matrices multiplication. In addition, we show s...

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  • publication . Article . 2018
    Open Access English
    Authors:
    Ayman Shehata;
    Publisher: Refaad

    The main object of this present paper is to introduce an extended family of Laguerre matrix polynomials and to derive a new class of certain summation formulas with the help of the Lie algebra method using techniques.

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  • publication . Article . 2020
    Open Access English
    Authors:
    Raad N. Butris; Hewa Selman Faris;
    Persistent Identifiers
    Publisher: Refaad

    In this paper, the numerical-analytic method has been used to study the existence and approximation of the periodic solutions for the vector T-system of new nonlinear multiple integro-differential equations of mixed (Volterra-Fredholm) and (Fredholm-Volterra) types. Our...

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  • publication . Article . Other literature type . 2018
    Open Access English
    Authors:
    Mohamed I. Riffi;
    Publisher: Refaad

    This paper considers the distributions of spacings between successive order statistics corresponding to a random sample from a two-parameter Gompertz distribution. Closed-form formulas for the probability density functions of the spacings and their moments are given in ...

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  • publication . Article . 2017
    Open Access
    Authors:
    Rashida Bibi; Tooba Feroze; Azad A. Siddiqui;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    In literature many solution of Einstein-Maxwell’s equations have been found. We consider the spherically symmetric geometry and classify the solutions of Einstein-Maxwell’s equations by considering the null/non-null electromagnetic field and isotropic/anisotropic matter ...

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  • publication . Article . 2016
    Open Access English
    Authors:
    Abdo Qahis;
    Persistent Identifiers
    Publisher: Refaad

    The aim of this paper is to introduce and study the notions of µ-semicompactness and strong µ-semi-compactness in generalized topological spaces with respect to a hereditary class, called µH-semi-compactness and S-µH-semicompactness, respectively. Also several of their ...

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119 research outcomes, page 4 of 12