Volume 4, Issue 2

 

ارسال های اخیر

  • THE ZERO-DIVISOR GRAPH OF A MODULE 

    Naghipour, A. (Shahrood University of Technology, 2017-01-01)
    Let R be a commutative ring with identity and M an R-module. In this paper, we associate a graph to M, sayΓ(RM), such that when M=R, Γ(RM) coincide with the zero-divisor graph of R. Many well-known results ...

  • MORE ON EDGE HYPER WIENER INDEX OF GRAPHS 

    Alhevaz, A.؛ Baghipur, M. (Shahrood University of Technology, 2017-01-01)
    ‎Let G=(V(G),E(G)) be a simple connected graph with vertex set V(G) and edge‎ ‎set E(G)‎. ‎The (first) edge-hyper Wiener index of the graph G is defined as‎: ‎$$WW_{e}(G)=sum_{{f,g}subseteq E(G)}(d_{e}(f,g|G) ...

  • REES SHORT EXACT SEQUENCES OF S-POSETS 

    Khosravi, R. (Shahrood University of Technology, 2017-01-01)
    In this paper the notion of Rees short exact sequence for S-posets is introduced, and we investigate the conditions for which these sequences are left or right split. Unlike the case for S-acts, being right ...

  • FINITE GROUPS WITH FIVE NON-CENTRAL CONJUGACY CLASSES 

    Rezaei, M.؛ Foruzanfar, Z. (Shahrood University of Technology, 2017-01-01)
    ‎Let G be a finite group and Z(G) be the center of G‎. ‎For a subset A of G‎, ‎we define kG(A)‎, ‎the number of conjugacy classes of G that intersect A non-trivially‎. ‎In this paper‎, ‎we verify the structure ...

  • FUZZY OBSTINATE IDEALS IN MV-ALGEBRAS 

    Forouzesh, F. (Shahrood University of Technology, 2017-01-01)
    In this paper, we introduce the notion of fuzzy obstinate ideals in MV -algebras. Some properties of fuzzy obstinateideals are given. Not only we give some characterizations of fuzzy obstinate ideals, but also bring ...

  • RADICAL OF FILTERS IN RESIDUATED LATTICES 

    Motamed, S. (Shahrood University of Technology, 2017-01-01)
    ‎In this paper‎, ‎the notion of the radical of a filter in‎ ‎residuated lattices is defined and several characterizations of‎ ‎the radical of a filter are given‎. ‎We show that if F is a‎ ‎positive implicative filter (or ...