Volume 02, Issue 02

 

ارسال های اخیر

  • On edge detour index polynomials 

    Safari Sabet, Sh.؛ Farmani, M.؛ Khormali, O.؛ Mahmiani, A.؛ Bagheri, Z. (Central Tehran Branch, Islamic Azad University, 2013-06-01)
    The edge detour index polynomials were recently introduced for computing the edge detour indices. In this paper we find relations among edge detour polynomials for the 2-dimensional graph of $TUC_4C_8(S)$ in a Euclidean ...

  • A new approach to solve fuzzy system of linear equations by Homotopy perturbation method 

    Paripour, M.؛ Saeidian, J.؛ Sadeghi, A. (Central Tehran Branch, Islamic Azad University, 2013-06-01)
    In this paper, we present an efficient numerical algorithm for solving fuzzy systems of linear equations based on homotopy perturbation method. The method is discussed in detail and illustrated by solving some numerical examples.

  • Operational matrices with respect to Hermite polynomials and their applications in solving linear differential equations with variable coefficients 

    Kalateh Bojdi, Z.؛ Ahmadi-Asl, S.؛ Aminataei, A. (Central Tehran Branch, Islamic Azad University, 2013-06-01)
    In this paper, a new and efficient approach is applied for numerical approximation of the linear differential equations with variable coeffcients based on operational matrices with respect to Hermite polynomials. Explicit ...

  • On strongly J-clean rings associated with polynomial identity g(x) = 0 

    Haj Seyyed Javadi, H.؛ Jamshidvand, S.؛ Maleki, M. (Central Tehran Branch, Islamic Azad University, 2013-06-01)
    In this paper, we introduce the new notion of strongly J-clean rings associated with polynomial identity g(x) = 0, as a generalization of strongly J-clean rings. We denote strongly J-clean rings associated with polynomial ...

  • Commuting $pi$-regular rings 

    Sahebi, Sh.؛ Azadi, M. (Central Tehran Branch, Islamic Azad University, 2013-06-01)
    R is called commuting regular ring (resp. semigroup) if for each x,y $in$ R there exists a $in$ R such that xy = yxayx. In this paper, we introduce the concept of commuting $pi$-regular rings (resp. semigroups) and study ...

  • A note on unique solvability of the absolute value equation 

    Lotfi, T.؛ Vieseh, H. (Central Tehran Branch, Islamic Azad University, 2013-06-01)
    It is proved that applying sufficient regularity conditions to the interval matrix $[A-|B|,A + |B|]$, we can create a new unique solvability condition for the absolute value equation $Ax + B|x|=b$, since regularity of ...