Volume 5, Issue 21

 

ارسال های اخیر

  • The spectrum of the hyper-star graphs and their line graphs 

    Karimi, F.؛ Mirafzal, S. M. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    Let n 1 be an integer. The hypercube Qn is the graph whose vertex set isf0;1gn, where two n-tuples are adjacent if they differ in precisely one coordinate. This graph has many applications in Computer sciences and ...

  • Evaluation of Students' Performance before and after Parent Involvement in Math Educaton with DEA 

    Haghi, S. E.؛ Rostamy-Malkhalifeh, M.؛ Behzadi, M. H.؛ Shahvarani, A. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    This paper describes two proposed strategies for involving families in mathematics education and forming a mathematical association for parents with the aim of involving parents in their children's mathematics education, ...

  • Solution of Backup Multifacility Location Problem by Considering the Ideal Radius for each Customer 

    fathali, jafar؛ nazari, morteza (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    In this paper we introduce a new facility location model, called backup multifacility location problem by considering the ideal radius for each customer. In this problem the location of clients are given in the plane. A ...

  • Evaluation of Model-Based Methods in Estimating Dynamic Functional Connectivity of Brain Regions 

    Behboudi, M.؛ Farnoosh, R.؛ Oghabian, M. A.؛ Pezeshk, H. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    Today, neuroscientists are interested in discovering human brain functions through brain networks. In this regard, the evaluation of dynamic changes in functional connectivity of the brain regions by using functional ...

  • Euler-Lagrange equations and geometric mechanics on Lie groups with potential 

    Suri, Ali (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    Abstract. Let G be a Banach Lie group modeled on the Banach space, possibly infinite dimensional, E. In this paper first we introduce Euler-Lagrange equations on the Lie group G with potential and right invariant metric. ...

  • Mathematical Model and Algorithm for sequencing operations in the machine building industry 

    fallah, M.؛ ghorani, N. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    In this paper, the problem of sequencing machines in the final assembly line with regard to the supply of parts has been investigated. For this reason, a basic integer linear programming model has been developed and based ...

  • On the Maximum Number of Dominating Classes in Graph Coloring 

    Faghani, M. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    In this paper we investigate the dominating- -color number،  of a graph G. That is the maximum number of color classes that are also dominating when G is colored using colors. We show that where is the ...

  • Portfolio ranking: using finance technology set in DEA models (Case Study: Tehran Stock Exchange) 

    Davtalab, A.؛ Mehrjoo, R. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    One of the most important concerns of investors in financial markets is choosing a share or stock portfolio that is optimal in terms of profitability. To this end, there are many ways in which the stock portfolio has been ...

  • Modify the linear search formula in the BFGS method to achieve global convergence. 

    Hosseini Dehmiry, S.A.R.؛ Hamzehnejad, M. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)

  • A model for the "Fuzzy TOPSIS" based on Zadde's extension principle 

    KARGAR, R. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    The TOPSIS process is one of the most comprehensive systems designed for decision making with multiple criteria, since this technique enables formulation of the problem as decision matrix, as well as the possibility of ...

  • 𝛅- homomorphism maps into dual Banach algebras 

    Hayati, B.؛ Khodaei, H. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    Let A be a Banach algebra and (B,B_*) be a dual Banach algebra. A linear map φ:A⟶B is said to be a δ - homomorphism map if ‖‖φ(a_1 a_2)-φ(a_1)φ(a_2)‖‖≤δ‖‖a_1‖‖ ‖‖a_2 ‖‖ for every a_1,a_2∈A. In this paper, we study ...

  • A new Levenberg-Marquardt approach based on Conjugate gradient structure for solving absolute value equations 

    Rahpeymaii, F.؛ Amini, K.؛ Allahviranloo, T. (Science and Research Branch, Islamic Azad Universityدانشگاه آزاد اسلامی واحد علوم و تحقیقات, 2019-12-01)
    In this paper, we present a new approach for solving absolute value equation (AVE) whichuse Levenberg-Marquardt method with conjugate subgradient structure. In conjugate subgradientmethods the new direction ...