مرور Journal of Algebra and Related Topics بر اساس تاریخ انتشار

در حال نمایش موارد 1 - 20 از 147

  • On Max-injective modules 

    Ovlyaee, Reza؛ Maleki-Roudposhti, Sepideh (University of Guilan, 2013-11-01)
    $R$-module. In this paper, we explore more properties of $Max$-injective modules and we study some conditions under which the maximal spectrum of $M$ is a $Max$-spectral space for its Zariski topology.

  • On continuous cohomology of locally compact Abelian groups and bilinear maps 

    Sahleh, Hossein (University of Guilan, 2013-11-01)
    Let $A$ be an abelian topological group and $B$ a trivial topological $A$-module. In this paper we define the second bilinear cohomology with a trivial coefficient. We show that every abelian group can be embedded in a ...

  • Fully primary modules and some variations 

    Nikseresht, Ashkan؛ Sharif, Habib (University of Guilan, 2013-11-01)
    Let R be a commutative ring and M be an R-module. We say that M is fully primary, if every proper submodule of M is primary. In this paper, we state some characterizations of fully primary modules. We also give some ...

  • On graded almost semiprime submodules 

    Farzalipour, Farkhondeh (University of Guilan, 2013-11-01)
    Let $G$ be a group with identity $e$. Let $R$ be a $G$-graded commutative ring with a non-zero identity and $M$ be a graded $R$-module. In this article, we introduce the concept of graded almost semiprime submodules. Also, ...

  • The generalized total graph of modules respect to proper submodules over commutative rings. 

    Tohidi, N. K.؛ Esmaeili Khalil Saraei, Fatemeh؛ Jalili, S. A. (University of Guilan, 2014-06-01)
    Let $M$ be a module over a commutative ring $R$ and let $N$ be a proper submodule of $M$. The total graph of $M$ over $R$ with respect to $N$, denoted by $T(Gamma_{N}(M))$, have been introduced and studied in [2]. In this ...

  • Asymptotic behaviour of associated primes of monomial ideals with combinatorial applications 

    Nasernejad, M. (University of Guilan, 2014-06-01)
    Let  $R$ be a commutative Noetherian ring and $I$ be an ideal of $R$. We say that $I$ satisfies the persistence property if  $mathrm{Ass}_R(R/I^k)subseteq mathrm{Ass}_R(R/I^{k+1})$ for all positive integers $kgeq 1$, which ...

  • Some results on Noetherian semigroup 

    Estaji, A. A.؛ Estaji, A. As. (University of Guilan, 2014-06-01)
    In this paper we study some results on Noetherian semigroups. We  show that if  $S_S$ is an  strongly  faithful $S$-act and $S$ is a duo weakly Noetherian, then we have the following.

  • Primal strong co-ideals in semirings 

    Ebrahimi Atani, S.؛ Dolati Pish Hesari, S.؛ Khoramdel, Mehdi (University of Guilan, 2014-06-01)
    In this paper, we introduce the notion of primal strong co-ideals and give some results involving them. It is shown thatsubtractive strong co-ideals are intersection of all primal strong co-ideals that contain them. Also ...

  • Cubic symmetric graphs of orders $36p$ and $36p^{2}$ 

    Alaeiyan, M.؛ Pourmokhtar, L.؛ Hosseinpoor, M. K. (University of Guilan, 2014-06-01)
    A graph is textit{symmetric}, if its automorphism group is transitive on the set of its arcs. In this paper, we  classifyall the connected cubic symmetric  graphs of order $36p$  and $36p^{2}$, for each prime $p$, of which ...

  • A note on primary-like submodules of multiplication modules 

    Fazaeli Moghimi, H.؛ Rashedi, F.؛ Samiei, M. (University of Guilan, 2014-12-01)
    Primary-like and weakly primary-like submodules are two new generalizations of primary ideals from rings to modules. In fact, the class of primary-like submodules of a module lie between primary submodules and weakly ...

  • Triple factorization of non-abelian groups by two maximal subgroups 

    Gharibkhajeh, A.؛ Doostie, H. (University of Guilan, 2014-12-01)
    The triple factorization of a group $G$ has been studied recently showing that $G=ABA$ for some proper subgroups $A$ and $B$ of $G$, the definition of rank-two geometry and rank-two coset geometry which is closely related ...

  • First non-abelian cohomology of topological groups II 

    Sahleh, Hossein؛ Koshkoshi, H. E. (University of Guilan, 2014-12-01)
    In this paper we introduce a new definition of the first non-abelian cohomology of topological groups.  We relate the cohomology of a normal subgroup $N$ of a topological group $G$ and the quotient $G/N$ to the cohomology ...

  • Weakly prime ternary subsemimodules of ternary semimodules 

    Chaudhari, J. N.؛ Bendale, H. P. (University of Guilan, 2014-12-01)
    In this paper we introduce the concept of weakly prime ternary subsemimodules of a ternary semimodule over a ternary semiring and obtain some characterizations of weakly prime ternary subsemimodules. We prove that if $N$ ...

  • A graph associated to spectrum of a commutative ring 

    Karimi, M. (University of Guilan, 2014-12-01)
    Let $R$ be a commutative ring. In this paper, by using algebraic properties of $R$, we study the Hase digraph of prime ideals of $R$.

  • Some numerical results on two classes of finite groups 

    Hashemi, Mansour؛ Polkouei, Mikhak (University of Guilan, 2015-06-01)
    In this paper, we consider the finitely presented groups $G_{m}$ and $K(s,l)$ as follows;$$G_{m}=langle a,b| a^m=b^m=1,~[a,b]^a=[a,b],~[a,b]^b=[a,b]rangle $$$$K(s,l)=langle a,b|ab^s=b^la,~ba^s=a^lbrangle;$$and find the ...

  • Strongly cotop modules 

    Ansari-Toroghy, Habibollah؛ Pourmortazavi, Seyed Sajad؛ Keyvani, Siamak (University of Guilan, 2015-06-01)
    In this paper, we introduce the dual notion of strongly top modules and study some of the basic properties of this class of modules.

  • On the fitting ideals of a comultiplication module 

    karimzadeh, somayeh؛ Hadjirezaei, Somayeh (University of Guilan, 2015-06-01)
    Let $R$ be a commutative ring. In this paper we assert some properties of finitely generated comultiplication modules and Fitting ideals of them.

  • Castelnuovo-Mumford regularity of products of monomial ideals 

    Yang, Sisi؛ Chu, Lizhong؛ Qian, Yufeng (University of Guilan, 2015-12-01)
    Let $R=k[x_1,x_2,cdots, x_N]$ be a polynomial ring over a field $k$. We prove that for any positive integers $m, n$, $text{reg}(I^mJ^nK)leq mtext{reg}(I)+ntext{reg}(J)+text{reg}(K)$ if $I, J, Ksubseteq R$ are three monomial ...

  • nth-roots and n-centrality of finite 2-generator p-groups of nilpotency class 2 

    Polkouei, Mikhak؛ Hashemi, Mansour (University of Guilan, 2015-12-01)
    Here we consider all finite non-abelian 2-generator $p$-groups ($p$ an odd prime) of nilpotency class two and study the probability of having $n^{th}$-roots of them. Also we find integers $n$ for which, these groups are ...

  • The total graph of a commutative semiring with respect to proper ideals 

    Ebrahimi Sarvandi, zahra؛ Ebrahimi Atani, S. (University of Guilan, 2015-12-01)
    Let $I$ be a proper ideal of a commutative semiring $R$ and let $P(I)$ be the set of all elements of $R$ that are not prime to $I$. In this paper, we investigate the total graph of $R$ with respect to $I$, denoted by ...