Characterize rings

Xem 1-20 trên 30 kết quả Characterize rings
  • It is shown that: (1) Let R be a simple right Noetherian ring, then the following conditions are equivalent: (i) R is a right SI ring; (ii) Every cyclic singular right R - module is pseudo - injective. (2) Let R be a right artinian ring such that every finite generated right R - module is a direct sum of a projective module and a pseudo - injective module. Then: (i) R/Soc(RR ) is a semisimple artinian ring; (ii) J (R) ⊂ Soc(RR ); (iii) J 2 (R) = 0. (3) Let R be a ring with condition (∗ ),...

    pdf5p tuanlocmuido 19-12-2012 32 2   Download

  • An element a of an associative ring R is said to be quasinilpotent if 1 − ax is invertible for every x ∈ R with xa = ax. Nilpotents and elements in the Jacobson radical of a ring are well-known examples of quasinilpotents. In this paper, properties and examples of quasinilpotents in a ring are provided, and the set of quasinilpotents is applied to characterize rings with some certain properties.

    pdf9p nutifooddau 21-01-2019 4 0   Download

  • The goal of this work is to give a precise numerical description of the K¨hler cone of a compact K¨hler manifold. Our main result states that the a a K¨hler cone depends only on the intersection form of the cohomology ring, the a Hodge structure and the homology classes of analytic cycles: if X is a compact K¨hler manifold, the K¨hler cone K of X is one of the connected components of a a the set P of real (1, 1)-cohomology classes {α} which are numerically positive on analytic cycles, i.e. Y αp 0 for every irreducible analytic...

    pdf29p tuanloccuoi 04-01-2013 41 5   Download

  • The liquid benzoxazine monomer was characterized by 1 HNMR and FTIR spectroscopy. Curing characteristics at different temperatures were studied and monitored by differential scanning calorimeter (DSC). The appearance of two exothermic peaks associated with reaction of double bonds of the aliphatic side–chain and ring opening polymerization of benzoxazine. High thermal stability of the polymer sample was confirmed by thermogravimetric analysis (TGA).

    pdf9p cumeo3000 01-08-2018 10 0   Download

  • Let (R, m) be a noetherian local ring and M a finitely generated Rmodule. In this paper, we study the number of elements in a minimal system of generators of the homogeneous ideal in the idealization ring RnM. As immediate consequences, we presented a characterization for RnM being a regular local ring and homogeneous ideals of RnM being parameters ideals.

    pdf5p tonymina21 05-12-2018 14 0   Download

  • In this paper, cyclic c−injective modules are introduced and investigated. It is shown that a commutative Noetherian domain is Dedekind if and only if every simple module is cyclic c−injective. Finally, it is shown that injectivity, principal injectivity, mininjectivity, and simple injectivity are all equal to characterize right V-rings, right GV-rings, right pV-rings, and WV-rings.

    pdf10p danhdanh27 07-01-2019 4 0   Download

  • In this paper, we first give some characterizations of e-symmetric rings. We prove that R is an e-symmetric ring if and only if a1a2a3 = 0 implies that aσ(1)aσ(2)aσ(3)e = 0, where σ is any transformation of {1, 2, 3}. With the help of the Bott–Duffin inverse.

    pdf11p nutifooddau 21-01-2019 6 0   Download

  • Let R be a ring and a, b, c ∈ R. We give a novel characterization of group inverses (resp. EP elements) by the properties of right (resp. left ) c -regular inverses of a and discuss the relation among the strongly left (b, c)-invertibility of a, the right ca-regularity of b , and the (b, c)-invertibility of a.

    pdf12p nutifooddau 21-01-2019 4 0   Download

  • In this paper, I will deal with dual-band electrically small antenna (ESA). The miniaturized radiation structure consists of a small ring and concentric split-ring resonator. The resonant response of the proposed radiation structure is characterized by the coupling among two split-ring resonators and the small ring. This interaction provides an additional capacitance to further reduce the total dimension of the resonant electrical length.

    pdf8p byphasse043256 24-03-2019 7 0   Download

  • This work employs ANSYS fluent CFD tool to calculate thrust generated a rotor covered by a ring surface using in UAV. The aim of this paper is to characterize the effects of geometry parameters of the ring surface such as diameter and height on the thrust of the rotor.

    pdf6p visasuke2711 25-04-2019 8 0   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Ring chromosome 13 syndrome characterized by high resolution array based comparative genomic hybridization in patient with 47, XYY syndrome: a case report...

    pdf4p thulanh26 08-12-2011 41 2   Download

  • As a solution to the problems encountered with DIRECT, Gamma employs what appear today to be relatively straightforward solutions. Architecturally, Gamma is based on a shared-nothing [STON86] architecture consisting of a number of processors interconnected by a communications network such as a hypercube or a ring, with disks directly connected to the individual processors. It is generally accepted that such architectures can be scaled to incorporate 1000s of processors.

    pdf160p nhacsihuytuan 13-04-2013 33 2   Download

  • A bacterial strain that grew on 4-amino-3-hydroxybenzoic acidwas isolated fromfarmsoil. The isolate, strain 10d, was identified as a species of Bordetella.CellextractsofBorde-tellasp. strain10dgrownon4-amino-3-hydroxybenzoicacid containedanenzyme that cleaved this substrate.The enzyme was purified to homogeneity with a 110-fold increase in specific activity. The purified enzyme was characterized as a meta-cleavage dioxygenase that catalyzed the ring fission betweenC2 andC3 of 4-amino-3-hydroxybenzoic acid, with the consumption of 1 mol of O2per mol of substrate....

    pdf7p tumor12 22-04-2013 30 2   Download

  • In this paper we characterize Q-modules and almost Q-modules. Next we estblish some equivalent conditions for an almost Q-module to be a Q-module. Using these results, some characterizations are given for Noetherian Q-modules.

    pdf11p danhdanh27 07-01-2019 12 1   Download

  • This notion is a generalization of left p.p. rings in the general module theoretic setting. The aim of this article is to investigate these modules. Some characterizations and properties are given. As applications, the connections among Baer rings, p.p. rings and von Neumann regular rings are studied.

    pdf10p tuongvidanh 06-01-2019 13 0   Download

  • Here we study the graded weakly prime ideals of a G-graded commutative ring. A number of results concerning graded weakly prime ideals are given. For example, we give some characterizations of graded weakly prime ideals and their homogeneous components.

    pdf8p danhdanh27 07-01-2019 6 0   Download

  • In this paper, we study some of the properties of gr-multiplication ideals in a graded ring R. We first characterize finitely generated gr-multiplication ideals and then give a characterization of gr-multiplication ideals by using the gr-localization of R. Finally we determine the set of gr-P primary ideals of R when P is a gr-multiplication gr-prime ideal of R.

    pdf9p danhdanh27 07-01-2019 7 0   Download

  • We investigate when different graphs associated to commutative rings are chordal. In particular, we characterize commutative rings R with each of the following conditions: The total graph of R is chordal, the total dot product or the zero-divisor dot product graph of R is chordal, the comaximal graph of R is chordal, R is semilocal and the unit graph or the Jacobson graph of R is chordal.

    pdf12p nutifooddau 21-01-2019 7 0   Download

  • In this paper, we created two new photonic crystal fiber structures with a silica substrate and the cladding consists of 8 rings of air holes arranged in a regular hexagonal lattice with hollow core infiltrated Nitrobenzene and Toluene.

    pdf6p vicolor2711 17-07-2019 5 0   Download

  • This book comprises the contributions of several authors in the area of polymer characterization by atomic force microscopy of the polymer network structure formed in Ferroelectric Liquid Crystals Cells; polymerization by microwave irradiation method of starch/acrylic acid/acrylamide; polymerization of olefins; emulsion polymerization; ring opening polymerization; cationic polymerization of vinyl monomers ; block and graft copolymerization by controlled/living polymerization; fabrication of doped microstructures by two-photon polymerization; rheology of biomaterials; plant cell wall ...

    pdf436p greengrass304 18-09-2012 145 38   Download



p_strKeyword=Characterize rings

nocache searchPhinxDoc


Đồng bộ tài khoản