Volume 02, Issue 03

 

ارسال های اخیر

  • OD-characterization of $S_4(4)$ and its group of automorphisms 

    Nosratpour, P. (Central Tehran Branch, Islamic Azad University, 2013-09-01)
    Let $G$ be a finite group and $pi(G)$ be the set of all prime divisors of $|G|$. The prime graph of $G$ is a simple graph $Gamma(G)$ with vertex set $pi(G)$ and two distinct vertices $p$ and $q$ in $pi(G)$ are adjacent by ...

  • Some properties of band matrix and its application to the numerical solution one-dimensional Bratu's problem 

    Jalilian, R.؛ Jalilian, Y.؛ Jalilian, H. (Central Tehran Branch, Islamic Azad University, 2013-09-01)
    A Class of new methods based on a septic non-polynomial spline function for the numerical solution one-dimensional Bratu's problem are presented. The local truncation errors and the methods of order 2th, 4th, 6th, 8th, ...

  • On the nonnegative inverse eigenvalue problem of traditional matrices 

    Nazari, A. M.؛ Kamali Maher, S. (Central Tehran Branch, Islamic Azad University, 2013-09-01)
    In this paper, at first for a given set of real or complex numbers $sigma$ with nonnegative summation, we introduce some special conditions that with them there is no nonnegative tridiagonal matrix in which $sigma$ is its ...

  • A generalization of Bertrand's test 

    Tabatabai Adnani, A. A.؛ Reza, A.؛ Morovati, M. (Central Tehran Branch, Islamic Azad University, 2013-09-01)
    One of the most practical routine tests for convergence of a positive series makes use of the ratio test. If this test fails, we can use Rabbe's test. When Rabbe's test fails the next sharper criteria which may sometimes ...

  • Some results of semilocally simply connected property 

    Etemad Dehkordya, A.؛ Malek Mohamad, M. (Central Tehran Branch, Islamic Azad University, 2013-09-01)
    If we consider some special conditions, we can assume fundamental group of a topological space as a new topological space. In this paper, we will present a number of theorems in topological fundamental group related to ...