Güncel Gönderiler: Matematik-Makale Koleksiyonu
Toplam kayıt 499, listelenen: 261-280
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Trigonometric approximation by matrix transforms in l-p(x) spaces
(World Scientific Publ Co Pte Ltd, 2012)The Lipschitz classes Lip(alpha, p(x)), 0 < alpha <= 1 are defined for the Lebesgue spaces L-p(x) with variable exponent p(x), and the degree of approximation by matrix transforms of f is an element of Lip(alpha, p(x)) is ... -
Approximation by interpolating polynomials in weighted symmetric smirnov spaces
(Hacettepe University, 2012)Let Gamma subset of C be a closed BR curve without cusps. In this work approximation by complex interpolating polynomials in a Weighted Symmetric Smirnov Space is studied. It is proved that the convergence rate of complex ... -
Some convolution inequalities in musielak oricz spaces
(Inst Mathematics & Mechanics, 2016)Uniform boundedness of some family of convolution-type operators with kernels, such as Steklov, Poisson, Cesaro, De la Vallee-Poussin, Fejer, Jackson, having some properties are investigated in Musielak Orlicz spaces. As ... -
Binary soft set theory
(European Journal Pure, 2016)In this paper, we study the concept of soft sets theory which introduced by Molodtsov [9] and the theory of soft sets which studied by Maji et al. [6]. The authors introduce a binary soft set on two initial universal sets ... -
Convolutions and best approximations in variable exponent lebesgue spaces
(Editura Acad Romane, 2016)In the variable exponent Lebesgue spaces a convolution is defined and its estimations in the variable exponent Lebesgue spaces by the best approximation numbers are obtained. -
N(k)-quasi einstein manifolds satisfying certain conditions
(Pergamon-Elsevier Science Ltd, 2008)We consider N(k)-quasi Einstein manifolds satisfying the conditions. R(epsilon,X), P = 0, P(epsilon, X), S = 0 and P = 0. We construct physical examples of N(k)-quasi Einstein space-times. -
Improved direct and converse theorems in weighted Lorentz spaces
(Belgian Mathematical Soc Triomphe, 2016)In the present work we prove the equivalence of the fractional modulus of smoothness to the realization functional and to the Peetre K-functional in weighted Lorentz spaces. Using this equivalence we obtain an improvement ... -
Chen inequalities for submanifolds of real space forms with a semi-symmetric non-metric connection
(Canadian Mathematical Soc, 2012)In this paper we prove Chen inequalities for submanifolds of real space forms endowed with a semi-symmetric non-metric connection, i.e., relations between the mean curvature associated with a semi-symmetric non-metric ... -
Multiplier theorems in weighted smirnov spaces
(Korean Mathematical Soc, 2008)The analogues of Marcinkiewicz multiplier theorem and Littlewood-Paley theorem are proved for p-Faber series in weighted Smirnov spaces defined on bounded and unbounded components of a rectifiable Jordan curve. -
On parametric s-metric spaces and fixed-point type theorems for expansive mappings
(Hindawi Ltd, 2016)We introduce the notion of a parametric S-metric space as generalization of a parametric metric space. Using some expansive mappings, we prove a fixed-point theorem on a parametric S-metric space. It is important to obtain ... -
Approximation by polynomials and rational functions in weighted rearrangement invariant spaces
(Academic Press Inc Elsevier Science, 2008)Let Gamma be a Dini-smooth curve in the complex plane, and let G := lnt Gamma. We prove some direct and inverse theorems of approximation theory by algebraic polynomials and rational functions in the weighted rearrangement ... -
Fractional diffusion-wave problem in cylindrical coordinates
(Elsevier Science Bv, 2008)in this Letter, we present analytical and numerical solutions for an axis-symmetric diffusion-wave equation. For problem formulation. the fractional time derivative is described in the sense of Riemann-Liouville. The ... -
Generalized sasakian space forms with semi-symmetric metric connections
(Unıv Al I Cuza, Fac Math, 2014)The aim of the present paper is to introduce generalized Sasakian space forms endowed with semi-symmetric metric connections. We obtain the existence theorem of a generalized Sasakian space form with semi-symmetric metric ... -
On Biharmonic Legendre curves in S-space forms
(Scientific Technical Research Council Turkey-Tubitak, 2014)We study biharmonic Legendre curves in S-space forms. We find curvature characterizations of these special curves in 4 cases. -
On submanifolds satisfying chen's equality in a real space form
(Springer Heidelberg, 2008)Einstein, conformally flat, semisymmetric, and Ricci-semisymmetric submanifolds satisfying Chen's equality in a real space form are studied. We prove that an n-dimensional (n >= 3) submanifold of a real space form (M) over ... -
Optimal boundary control of thermal stresses in a plate based on time-fractional heat conduction equation
(Taylor & Francis Inc, 2014)This article presents an optimal control problem for a fractional heat conduction equation that describes a temperature field. The main purpose of the research was to find the boundary temperature that takes the thermal ... -
On semiparallel anti-invariant submanifolds of generalized Sasakian space forms
(Scientific Technical Research Council Turkey-Tubitak, 2014)We consider minimal anti-invariant semiparallel submanifolds of generalized Sasakian space forms. We show that the submanifolds are totally geodesic under certain conditions. -
Approximation and moduli of fractional orders in smirnov-orlicz classes
(Croatian Mathematical Soc, 2008)In this work we investigate the approximation problems in the Smirnov-Orlicz spaces in terms of the fractional modulus of smoothness. We prove the direct and inverse theorems in these spaces and obtain a constructive ... -
Finite derivation type for graph products of monoids
(Univ Nis, 2016)The aim of this paper is to show that the class of monoids of finite derivation type is closed under graph products. -
On slant curves in trans-sasakian manifolds
(Union Matematica Argentina, 2014)We find the characterizations of the curvatures of slant curves in trans-Sasakian manifolds with C-parallel and C-proper mean curvature vector field in the tangent and normal bundles.
