نتایج جستجو برای: weakly annihilating submodule

تعداد نتایج: 44405  

Journal: :Physical review 2023

Recent radio-frequency probes, with the ATCA and ASKAP telescopes, have proven themselves to be at forefront of placing indirect limits on properties dark matter. The latter being able substantially exceed constraining power Fermi-LAT data. However, these observations were based only dwarf galaxies, where magnetic field uncertainties are large. Here we reexamine case for galaxy clusters, often ...

Journal: :AKCE International Journal of Graphs and Combinatorics 2023

Recently, Katre et al. introduced the concept of coprime index a graph. They asked to characterize graphs for which is same as clique number. In this paper, we partially solve problem. fact, prove that number and zero-divisor graph an ordered set ring Zpn coincide. Also, it proved annihilating ideal graphs, co-annihilating comaximal commutative rings can be realized specially constructed posets...

Journal: :Journal of Cosmology and Astroparticle Physics 2022

We study the allowed primordial black hole (PBH) dark matter abundance in mixed scenarios consisting of PBHs and self-annihilating weakly interacting massive particles (WIMPs) with a velocity dependent annihilation cross section. first briefly illustrate how WIMP halo profile changes for suppressed p-wave scenarios, compared familiar s-wave then discuss PBH mass upper bound on abundance. The WI...

2010
Dong Soo Lee Yong Sub Choi

The notion of intuitinitic (T, S)-fuzzy submodule in Module is introduced, and related properties are investigated. Mathematics Subject Classification: 08A72, 13C99

Journal: :bulletin of the iranian mathematical society 2012
habibollah ansari-toroghy faranak farshadifar

in this paper, the notion of fully idempotent modules is defined and it is shown that this notion inherits most of the essential properties of the usual notion of von neumann's regular rings. furthermore, we introduce the dual notion of fully idempotent modules (that is, fully coidempotent modules) and investigate some properties of this class of modules.

Journal: :journal of algebraic systems 2014
alireza naghipour

let $r$ be a commutative ring with identity and let $m$ be an $r$-module. a proper submodule $p$ of $m$ is called strongly prime submodule if $(p + rx : m)ysubseteq p$ for $x, yin m$, implies that $xin p$ or $yin p$. in this paper, we study more properties of strongly prime submodules. it is shown that a finitely generated $r$-module $m$ is artinian if and only if $m$ is noetherian and every st...

Journal: :Linear Algebra and its Applications 1991

2014
Yuichi Futa Hiroyuki Okazaki Yasunari Shidama yuichi futa hiroyuki okazaki

In this article, we formalize a free Z-module and its property. In particular, we formalize the vector space of rational field corresponding to a free Z-module and prove formally that submodules of a free Z-module are free. Z-module is necassary for lattice problems LLL (Lenstra, Lenstra and Lovász) base reduction algorithm and cryptographic systems with lattice [20]. Some theorems in this arti...

In this paper we characterize the radical of an arbitrary‎ ‎submodule $N$ of a finitely generated free module $F$ over a‎ ‎commutatitve ring $R$ with identity‎. ‎Also we study submodules of‎ ‎$F$ which satisfy the radical formula‎. ‎Finally we derive‎ ‎necessary and sufficient conditions for $R$ to be a‎ ‎Pr$ddot{mbox{u}}$fer domain‎, ‎in terms of the radical of a‎ ‎cyclic submodule in $Rbigopl...

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