مرور Volume 6, Issue 2 بر اساس عنوان

  • On $alpha $-semi-Short Modules 

    Davoudian, Maryam (Shahrood University of Technology, 2019-01-01)
    We introduce and study the concept of $alpha $-semi short modules. Using this concept we extend some of the basic results of $alpha $-short modules to $alpha $-semi short modules. We observe that if $M$ is an $alpha $-semi ...

  • ON EQUALITY OF ABSOLUTE CENTRAL AND CLASS PRESERVING AUTOMORPHISMS OF FINITE p-GROUPS 

    Soleimani, Rasoul (Shahrood University of Technology, 2019-01-01)
    Let $G$ be a finite non-abelian $p$-group and $L(G)$ denotes the absolute center of $G$. Also, let $Aut^{L}(G)$ and $Aut_c(G)$ denote the group of all absolute central and the class preserving automorphisms of $G$, ...

  • ON GRADED INJECTIVE DIMENSION 

    Mahmoodi, Akram؛ Esmaeelnezhad, Afsaneh (Shahrood University of Technology, 2019-01-01)
    There are remarkable relations between the graded homological dimensions and the ordinary homological dimensions. In this paper, we study the injective dimension of a complex of graded modules and derive its some properties. ...

  • ON SEMI MAXIMAL FILTERS IN BL-ALGEBRAS 

    Paad, Akbar؛ Borzooei, R. A. (Shahrood University of Technology, 2019-01-01)
    In this paper, first we study the semi maximal filters in linear $BL$-algebras and we prove that any semi maximal filter is a primary filter. Then, we investigate the radical of semi maximal filters in $BL$-algebras. ...

  • ON STRONGLY ASSOCIATIVE HYPERRINGS 

    Arabpur, Fatemeh؛ Jafarpour, Morteza (Shahrood University of Technology, 2019-01-01)
    This paper generalizes the idea of strongly associative hyperoperation introduced in [7]  to the class of hyperrings. We introduce and investigate hyperrings of type 1, type 2 and SDIS. Moreover, we study some examples of ...

  • ON THE CAPACITY OF EILENBERG-MACLANE AND MOORE SPACES 

    Mohareri, Mojtaba؛ Mashayekhi, Behrooz؛ Mirebrahimi, Hanieh (Shahrood University of Technology, 2019-01-01)
    K. Borsuk in 1979, at the Topological Conference in Moscow, introduced concept of the capacity of a compactum and asked some questions concerning properties of the capacity ofcompacta. In this paper, we give partial ...

  • ON THE SPECTRUM OF DERANGEMENT GRAPHS OF ORDER A PRODUCT OF THREE PRIMES 

    Ghorbani, Modjtaba؛ Rajabi-Parsa, Mina (Shahrood University of Technology, 2019-01-01)
    A permutation with no fixed points is called a derangement. The subset $mathcal{D}$ of a permutation group is derangement if all elements of $mathcal{D}$ are derangement. Let $G$ be a permutation group, a derangement