مرور Volume 7, Issue 2 بر اساس تاریخ انتشار

در حال نمایش موارد 1 - 11 از 11

  • FILTER REGULAR SEQUENCES AND LOCAL COHOMOLOGY MODULES 

    Azami, J. (Shahrood University of Technology, 2020-01-01)
    Let R be a commutative Noetherian ring. In this paper we consider some relations between filter regular sequence,regular sequence and system of parameters over R-modules. Also we obtain some new results about cofinitness ...

  • EQUALIZERS IN THE CATEGORIES FUZZ AND TOPFUZZ 

    Mirhosseinkhani, Gh.؛ Nazari, N. (Shahrood University of Technology, 2020-01-01)
    It is well known that the categories Fuzz of fuzzes and TopFuzz of topological fuzzes are both complete and cocomplete, and some categorical properties of them were introduced by many authors. In this paper, ...

  • SOME RESULTS ON THE COMPLEMENT OF THE INTERSECTION GRAPH OF SUBGROUPS OF A FINITE GROUP 

    Visweswaran, S.؛ Vadhel, P. (Shahrood University of Technology, 2020-01-01)
    Let G be a group. Recall that the intersection graph of subgroups of G is an undirected graph whose vertex set is the set of all nontrivial subgroups of G and distinct vertices H,K are joined by an edge in this graph if ...

  • A CHARACTERIZATION FOR METRIC TWO-DIMENSIONAL GRAPHS AND THEIR ENUMERATION 

    Mohagheghy Nezhad, M.؛ Rahbarnia, F.؛ Mirzavaziri, M.؛ Ghanbari, R. (Shahrood University of Technology, 2020-01-01)
    ‎The textit{metric dimension} of a connected graph $G$ is the minimum number of vertices in a subset $B$ of $G$ such that all other vertices are uniquely determined by their distances to the vertices in $B$‎. ‎In this ...

  • SOME NEW CONSTRUCTIONS OF LINEAR CODES INCLUDING A WIDE FAMILY OF MDS CODES 

    Rafieepour, A.؛ Mazrooei, M. (Shahrood University of Technology, 2020-01-01)
    Let ‎$‎mathbb{Z}_p‎$‎ be the finite field of integers modulo ‎$‎p‎$‎, where ‎$‎p>3‎$‎ is a prime integer. This paper presents new constructions of linear codes over ‎$‎mathbb{Z}_p‎$‎‎. Based on our construction, linear ...

  • COMPUTING THE EIGENVALUES OF CAYLEY GRAPHS OF ORDER p2q 

    Ghorbani, M.؛ Seyyed-Hadi, A.؛ Nowroozi-Larki, F. (Shahrood University of Technology, 2020-01-01)
    A graph is called symmetric if its full automorphism group acts transitively on the set of arcs. The Cayley graph $Gamma=Cay(G,S)$ on group $G$ is said to be normal symmetric if $N_A(R(G))=R(G)rtimes Aut(G,S)$ acts ...

  • THE SPECTRAL DETERMINATION OF THE MULTICONE GRAPHS Kw ▽ C WITH RESPECT TO THEIR SIGNLESS LAPLACIAN SPECTRA 

    Zeydi Abdian, A.؛ Fath-Tabar, Gh. H.؛ Rahmani Moghaddam, M. (Shahrood University of Technology, 2020-01-01)
    The main aim of this study is to characterize new classes of multicone graphs which are determined by their signless Laplacian spectra. A multicone graph is defined to be the join of a clique and a regular graph. Let ...

  • A REDUCTION IN THE SEARCH SPACE OF QC-LDPC CODES WITH GIRTH 8 

    Amirzade, F.؛ Alishahi, M.؛ Rafsanjani-Sadeghi, M.R. (Shahrood University of Technology, 2020-01-01)
    In this paper, we define a structure to obtain exponent matrices of girth-8 QC-LDPC codes with column weight 3. Using the difference matrices introduced by Amirzade et al., we investigate necessary and sufficient conditions ...

  • A GRAPH WHICH RECOGNIZES IDEMPOTENTS OF A COMMUTATIVE RING 

    Dorbidi, H.؛ Alikhani, S. (Shahrood University of Technology, 2020-01-01)
    In this paper we introduce and study a graph on the set of ideals of a commutative ring $R$. The vertices of this graph are non-trivial ideals of $R$ and two distinct ideals $I$ and $J$ are adjacent if and only ...

  • ON LOCAL ANTIMAGIC CHROMATIC NUMBER OF GRAPHS 

    Shaebani, S. (Shahrood University of Technology, 2020-01-01)
    A {it local antimagic labeling} of a connected graph $G$ with at least three vertices, is a bijection $f:E(G) rightarrow {1,2,ldots , |E(G)|}$ such that for any two adjacent vertices $u$ and $v$ of $G$, the condition

  • ON PRIMARY IDEALS OF POINTFREE FUNCTION RINGS 

    Abedi, M. (Shahrood University of Technology, 2020-01-01)
    We study primary ideals of the ring $mathcal{R}L$ of real-valued continuous functions on a completely regular frame $L$. We observe that prime ideals and primary ideals coincide in a $P$-frame. It is shown that every primary ...