Browsing Matematik Bölümü Makale Koleksiyonu by Issue Date
Now showing items 101-120 of 168
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Rings Whose Pure-Injective Right Modules Are Direct Sums of Lifting Modules
(Academic Press Inc Elsevier Science, 2013)It is shown that every pure-injective right module over a ring R is a direct sum of lifting modules if and only if R is a ring of finite representation type and right local type. In particular, we deduce that every left ... -
Categories of Rough Sets and Textures
(Elsevier Science Bv, 2013)It is known that the theories of rough sets and fuzzy sets have successful applications in computing. Textures, as a theoretical model, provide a new perspective for both rough sets and fuzzy sets. Indeed, recent papers ... -
On Artinian Rings With Restricted Class Of Injectivity Domains
(Academic Press Inc Elsevier Science, 2013)In a recent paper of Alahmadi, Alkan and Lopez-Permouth, a ring R is defined to have no (simple) middle class if the injectivity domain of any (simple) R-module is the smallest or largest possible. Er, Lopez-Permouth and ... -
On (D-12)-Modules
(Rocky Mt Math Consortium, 2013)is known that a direct summand of a (D-12)module need not be a (D-12)-module. In this paper we establish some properties of completely (D-12)-modules (modules for which every direct summand is a (D-12)-module). After giving ... -
Smooth Attractors Of Finite Dimension For Von Karman Evolutions With Nonlinear Frictional Damping Localized In A Boundary Layer
(Academic Press Inc Elsevier Science, 2013)In this paper dynamic von Karman equations with localized interior damping supported in a boundary collar are considered. Hadamard well-posedness for von Karman plates with various types of nonlinear damping are well known, ... -
Effective Computation of Exact and Analytic Approximate Solutions to Singular Nonlinear Equations of Lane-Emden-Fowler Type
(Elsevier Science Inc, 2013)The particular motivation of this work is to develop a computational method to calculate exact and analytic approximate solutions to singular strongly nonlinear initial or boundary value problems of Lane-Emden-Fowler type ... -
Essential Spectra Of Quasi-Parabolic Composition Operators On Hardy Spaces Of The Poly-Disc
(Element, 2013)In this paper we study the essential spectra of a class of composition operators on the Hilbert-Hardy space of the hi-disc which is called "quasi-parabolic" and whose one variable analogue was studied in [2]. As in [2], ... -
Quasipolar Subrings of 3 X 3 Matrix Rings
(Sciendo, 2013)An element a of a ring R is called quasipolar provided that there exists an idempotent p is an element of R such that p is an element of comm(2)(a), a + p is an element of U(R) and ap is an element of R-qnil. A ring R is ... -
Strongly Large Module Extensions
(Univ Al I Cuza, Fac Math, 2013)In this paper, we introduce strongly large submodules and investigate their properties. A submodule N of a right R-module M is said to be strongly large in case for any m is an element of M, s is an element of R with ms ... -
Long-Time Dynamics of the Parabolic P-Laplacian Equation
(Amer Inst Mathematical Sciences, 2013)In this paper, we study the long-time behaviour of solutions of Cauchy problem for the parabolic p-Laplacian equation with variable coefficients. Under the mild conditions on the coefficient of the principal part and without ... -
A Generalization Of Rickart Modules
(Belgian Mathematical Soc Triomphe, 2014)Let R be an arbitrary ring with identity and M a right R-module with S = End(R) (M). In this paper we introduce pi-Rickart modules as a generalization of Rickart modules. pi-Rickart modules are also a dual notion of dual ... -
Goldie-Rad-Supplemented Modules
(Ovidius Univ Press, 2014)In this paper we introduce beta** relation on the lattice of submodules of a module M. We say that submodules X, Y of M are beta** equivalent, X beta**Y, if and only if X+Y/X subset of Rad(M)+X/X and X+Y/Y subset of ... -
Global Attractors For The Plate Equation With Nonlocal Nonlinearity In Unbounded Domains
(Int Press Boston, Inc, 2014)We consider the initial value problem for the semilinear plate equation with nonlocal nonlinearity. We prove the existence of global attractor and then establish the regularity and finite dimensionality of this attractor. -
Some Rings For Which The Cosingular Submodule Of Every Module Is A Direct Summand
(Scientific Technical Research Council Turkey-Tubitak, 2014)The snbmodule (Z)overbar(M) = boolean AND{N vertical bar M/N is small in its injective hull} was introduced by Talebi and Vanaja in 2002. A ring R is said to have property (P) if (Z)overbar(M) is a direct summand of M for ... -
Strongly Damped Wave Equation With Exponential Nonlinearities
(Academic Press Inc Elsevier Science, 2014)In this paper, we study the initial boundary value problem for two-dimensional strongly damped wave equation with exponentially growing source and damping terms. We first show the well-posedness of this problem and then ...