Download Results
64 research outcomes, page 1 of 7
  • publication . Article . 2017
    Open Access English
    Authors:
    A.A.Azamov;
    Publisher: Refaad

    It is suggested several lower estimations for the determinants of matrices consisting of elements +1 and −1, improving the known Hadamard’s lower estimation

  • publication . Article . 2017
    Open Access English
    Authors:
    O. Bazighifan;
    Publisher: Refaad

    This paper is concerned with asymptotic and oscillatory properties of the nonlinear higher-order differential equation with delay argument. Some examples are given to illustrate our main result

  • publication . Article . 2017
    Open Access English
    Authors:
    Karwan Hama Faraj Jwamer; Bzhar Jamal;
    Publisher: Refaad

    In this paper, a quadratic B-Spline has been constructed that is an approximate solution to a function with very limited given lacunary data and approximate boundary conditions. Then the error bound for the B-spline is found. Further this construction is used to solve b...

  • publication . Article . 2019
    Open Access English
    Authors:
    Shadya M. Mershkhan; Baravan A. Asaad;
    Persistent Identifiers
    Publisher: Refaad

    In this paper, the concepts of Pp-compact spaces by using nets, filter base and Pp-complete accumulation points are introduced and studied.

    Add to ORCIDorcid
  • publication . Article . 2017
    Open Access English
    Authors:
    K.Hilal; Y. Allaoui;
    Publisher: Refaad

    In this work we define the solution of the fractional neutral impulsive differential equation with infinite delay. The results of existence are obtained by using the Banach contraction and Schafer fixed point. Some proprieties of probability density functions and semi-group...

  • publication . Article . 2017
    Open Access English
    Authors:
    Nourddin Saidou;
    Publisher: Refaad

    In this paper we will establish a new relationship between differentiability and optimization of convex functions. We consider convex lower semi continuous functions in Banach spaces and we characterize respectively the relation between Fr´echet (Gaˆteaux) differentiabili...

  • publication . Article . 2017
    Open Access English
    Authors:
    Md. Yasin Ali; Kanak Ray Chowdhury; Abeda Sultana; Nirmal Kanti Mitra;
    Publisher: Refaad

    In this paper, using “belongingness (∈) ” and quasi-coincidence (q) ” of fuzzy points and" fuzzy sets, the concept of (∈, ∈ ∨q) -fuzzy hemirings and (∈¯, ∈ ∨¯ ¯q) -fuzzy hemirings have been introduced and some of its properties have been investigate

  • publication . Article . 2019
    Open Access English
    Authors:
    Shahad T.Almohammadi; Cenap Ozel;
    Persistent Identifiers
    Publisher: Refaad

    In this article, we will introduce the concept of rough vector spaces using upper approximation, and some algebraic results will be proven. Additionally, this concept will be combined with the concept of topological space.

    Add to ORCIDorcid
  • publication . Article . 2017
    Open Access English
    Authors:
    A. El Allaoui; Said Melliani; Lalla Saadia Chadli;
    Persistent Identifiers
    Publisher: Refaad

    In this paper, we generalize the definition of a fuzzy strongly continuous semigroup and its generator. We define a conformable fractional fuzzy semigroups of operators and its generator. We establish some of their properties and some results about this concept.

    Add to ORCIDorcid
  • publication . Article . 2019
    Open Access English
    Authors:
    Zanyar A. Ameen;
    Persistent Identifiers
    Publisher: Refaad

    Jordan algebras are the most natural type of algebras associated with finitely additive measures. Some consequences of this class of algebras are found. In particular, the questions of, what is the nature of the σ-algebra generated by the Jordan algebra? when the Jordan ...

    Add to ORCIDorcid
64 research outcomes, page 1 of 7