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69 research outcomes, page 4 of 7
  • publication . Article . 2018
    Open Access English
    Authors:
    Eskandar Ali; Ahed Hassoon;
    Persistent Identifiers
    Publisher: Refaad

    In this paper, we determine when two Cayley graphs over the cyclic group Zpq2 are to be isomorphic, for p 6= q prime numbers. and we determine the all types of automorphism groups of these graphs.

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  • publication . Article . 2019
    Open Access English
    Authors:
    Atta A. K. Abu Hany; Mohammed S. El-Khatib; Abbas K. Shourrab;
    Persistent Identifiers
    Publisher: Refaad

    We focus our attention in this article on some recent results regarding Hardy-Hilbert’s inequalities. We derive an equivalent form using katugampola Fractional Calculus and introduce new analogs to some Hardy-Hilbert’s type inequality. Several special cases are also giv...

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  • publication . Article . 2021
    Open Access English
    Authors:
    Ogoke Uchenna Petronilla;
    Publisher: Refaad

    This research is unlike many others in that the concept of the nested design is applied in the medical science as against the trend in the agricultural and social sciences. In this research, we consider a three-stage (2 × 5 × 2) nested design with the factors being Hosp...

  • publication . Article . 2019
    Open Access English
    Authors:
    Mohamed Elarabi Benattia; Kacem Belghaba;
    Persistent Identifiers
    Publisher: Refaad

    In this work , we investigate the Aboodh transformation method to solve first order constant coefficients complex equations. This method provides an effective and efficient way of solving a wide range of linear operator equations.

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  • publication . Article . 2018
    Open Access English
    Authors:
    P C Jackreece; C. A. Godspower; H. C. Ugorji;
    Persistent Identifiers
    Publisher: Refaad

    In this study, controllability of a class of fractional-order dynamical system with time-varying delays is considered. First, a representation of the solution is given using Laplace transform and Mittageleffler function. Then necessary and sufficient conditions for the ...

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  • publication . Article . 2017
    Open Access English
    Authors:
    Maher Nazmi Qarawani;
    Persistent Identifiers
    Publisher: Refaad

    In this paper we establish Hyers-Ulam-Rassias stability and Hyers-Ulam Criteria for second order non-linear ordinary differential equations of Lane-Emden type; moreover two examples of such equations are considered

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  • 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 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 . 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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69 research outcomes, page 4 of 7