Central Tehran Branch, Islamic Azad UniversityJournal of Linear and Topological Algebra (JLTA)2252-0201030120140810On the commuting graph of non-commutative rings of order $p^nq$16510027ENE. VatandoostFaculty of Basic Science, Imam Khomeini International University,
Qazvin, IranF. RamezaniFaculty of Basic Science, Imam Khomeini International University,
Qazvin, IranA. BahrainiDepartment of Mathematics, Islamic Azad University, Central Tehran Branch,
Tehran, Iran20140517http://jlta.iauctb.ac.ir/article_510027_cb6b3d3d3b0ec4787fdfbfa4d5748f33.pdfCentral Tehran Branch, Islamic Azad UniversityJournal of Linear and Topological Algebra (JLTA)2252-0201030120140301A note on the convergence of the Zakharov-Kuznetsov equation by homotopy analysis method713510028ENA. FallahzadehDepartment of Mathematics, Islamic Azad University, Central Tehran Branch, PO. Code 13185.768, Tehran, IranM. A. Fariborzi AraghiDepartment of Mathematics, Islamic Azad University, Central Tehran Branch, PO. Code 13185.768, Tehran, Iran20140521http://jlta.iauctb.ac.ir/article_510028_f710965a2d7e685d68d6328b78dffbc9.pdfCentral Tehran Branch, Islamic Azad UniversityJournal of Linear and Topological Algebra (JLTA)2252-0201030120140301On the superstability of a special derivation1522510029ENM. HassaniDepartment of Mathematics, Mashhad Branch, Islamic Azad University,
Mashhad 91735, IranE. KeyhaniDepartment of Mathematics, Mashhad Branch, Islamic Azad University,
Mashhad 91735, Iran20140514http://jlta.iauctb.ac.ir/article_510029_b8ac6d0e30d57bf0f557dfc20a5710c5.pdfCentral Tehran Branch, Islamic Azad UniversityJournal of Linear and Topological Algebra (JLTA)2252-0201030120140301Positive solution of non-square fully Fuzzy linear system of equation in general form using least square method2333510030ENR. EzzatiDepartment of Mathematics, Karaj Branch, Islamic Azad University, Karaj, IranA. YousefzadehDepartment of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran20140530 n$, based on Kaffman's arithmetic operations on fuzzy numbers that introduced in [18]. First, we consider all elements of coefficient matrix are non-negative or non-positive. Also, we obtain 1-cut of the fuzzy number vector solution of the non-square FFLS of equations by using pseudoinverse. If 1-cuts vector is non-negative, we solve constrained least squares problem for computing left and right spreads. Then, in the special case, we consider 0 is belong to the support of some elements of coefficient matrix and solve three overdetermined linear systems and if the solutions of these systems held in non-negative fuzzy solutions then we compute the solution of the non-square FFLS of equations. Else, we solve constrained least squares problem for obtaining an approximated non-negative fuzzy solution. Finally, we illustrate the efficiency of the proposed method by solving some numerical examples.]]>http://jlta.iauctb.ac.ir/article_510030_9cb8d80014c45ee5eb59071afc82d36e.pdfCentral Tehran Branch, Islamic Azad UniversityJournal of Linear and Topological Algebra (JLTA)2252-0201030120140301Expansion methods for solving integral equations with multiple time lags using Bernstein polynomial of the second kind3545510031ENM. ParipourDepartment of Mathematics, Hamedan University of Technology, Hamedan, 65156-579, IranZ. ShojaeiDepartment of Mathematics, Lorestan University, Khoramabad, IranS. AbdolahiDepartment of Mathematics, Arak Branch, Islamic Azad University, Arak, Iran20150526http://jlta.iauctb.ac.ir/article_510031_6fe05231854cbbe3f59efc96066862cf.pdfCentral Tehran Branch, Islamic Azad UniversityJournal of Linear and Topological Algebra (JLTA)2252-0201030120140901Cubic spline Numerov type approach for solution of Helmholtz equation4754510032ENJ. RashidiniaDepartment of Mathematics,College of basic science, Islamic Azad University, Alborz, IranH. S. ShekarabiDepartment of Mathematics,College of basic science, Islamic Azad University, Alborz, IranM. AghamohamadiDepartment of Mathematics,College of basic science, Islamic Azad University, Alborz, Iran20140514http://jlta.iauctb.ac.ir/article_510032_d5dc22669a6b47d6fba42687de484cbd.pdfCentral Tehran Branch, Islamic Azad UniversityJournal of Linear and Topological Algebra (JLTA)2252-0201030120140901Generalized f-clean rings5560510033ENS. JamshidvandDepartment of Mathematics, Shahed University, Tehran, IranH. Haj Seyyed JavadiDepartment of Mathematics, Shahed University, Tehran, IranN. Vahedian JavaheriDepartment of Mathematics, Shahed University, Tehran, Iran20140509http://jlta.iauctb.ac.ir/article_510033_a060ec3182b9eeff8aa51f0917440e1c.pdf