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129 research outcomes, page 6 of 13
  • publication . Article . 2021
    Open Access English
    Authors:
    Nourrdin SAIDOU;
    Publisher: Refaad

    The objective of this research paper is to follow up on the work already started in order to install a new mathematical analysis, the one we called Cartesian analysis see our previous works[1],[2]. During these last two papers, we started with the definition of cartesia...

  • publication . Article . 2019
    Open Access English
    Authors:
    Hussein Ageel Khatab; Salah Gazi Shareef;
    Persistent Identifiers
    Publisher: Refaad

    In this paper, we suggest a new conjugate gradient method for solving nonlinear unconstrained optimization problems by using three term conjugate gradient method , We give a descent condition and the sufficient descent condition of the suggested method.

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  • publication . Article . 2017
    Open Access
    Authors:
    Esra Yolacan;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    In this paper, we establish the concept of non-self Hardy-Rogers contractions on Banach spaces involving a graph. We also prove some fixed point theorems for such mappings. The results of this paper extend and generalize various known results in the literature.

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  • publication . Article . 2017
    Open Access English
    Authors:
    Touria Karite; Ali Boutoulout; Fatima Zahrae El Alaoui;
    Persistent Identifiers
    Publisher: Refaad

    The aim of this paper is to study the enlarge gradient-controllability problem of the heat equation. The purpose is to compute the control u which steers the state gradient of the system between two prescribed levels l1 and l2, only on a subregion ω of the system evolut...

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  • publication . Article . 2018
    Open Access
    Authors:
    Laib Teldja; Ayadi abdelhamid;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    The purpose of this article is, firstly, to modify the old definition of the sentinel, introduced by J.L. Lions, so that we can separate the control support to the observation support and, secondly, to identify the pollution terms which arise in regular problems which a...

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  • publication . Article . 2018
    Open Access
    Authors:
    Z. Kishka; M. Saleem; M. Abdalla; A. Elrawy;
    Publisher: Refaad for Studies and Research

    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 . 2020
    Open Access
    Authors:
    Hariwan Z. Ibrahim;
    Publisher: Refaad for Studies and Research

    In this paper, Micro β-open in micro topological space is introduced and basic properties of Micro β-open sets are analyzed and also this set used to introduce and study the new types of functions called Micro β-irresolute, Micro β-continuous and Micro Wb-continuous fun...

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  • publication . Article . 2019
    Open Access English
    Authors:
    M. Zaatra;
    Persistent Identifiers
    Publisher: Refaad

    In this paper, we obtain all the symmetric semi-classical linear functionals of class four taking into account the irreducible expression of the corresponding Pearson equation. We focus our attention on their integral representations. Thus, some linear functionals very ...

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  • publication . Article . 2017
    Open Access
    Authors:
    Taufiq Nasseef;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    Galois Theory, a wonderful part of mathematics with historical roots date back to the solution of cubic and quantic equations in the sixteenth century. However, beside understanding the roots of polynomials, Galois Theory also gave birth to many of the central concepts ...

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  • publication . Article . 2018
    Open Access
    Authors:
    A. Ouhadan; Youness Chatibi; El Hassan Elkinani; Ibrahim Ahmed Al-Subaihi;
    Persistent Identifiers
    Publisher: Refaad for Studies and Research

    In this paper, the invariant subspace method is used to solve the nonlinear fifth order dispersive equation involving time-Caputo Fabrizio fractional derivative. A non trivial exact solution of this nonlinear fractional partial differential equation is obtained and it is ...

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129 research outcomes, page 6 of 13