Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 322, listelenen: 281-300
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Convergence of the q analogue of Szasz-Beta operators
(Elsevier Science Inc, 2010)In the present paper we introduce the q analogue of the well known Szasz-Beta operators [11]. We also establish the approximation properties of these operators and estimate convergence results. In the end we propose an ... -
An application of Ritt-Wu's zero decomposition algorithm to null Bertrand type curves in Minkowski 3-space
(Hacettepe Univ, Fac Sci, 2010)Bertrand curves were first studied using a computer by W. -T. Wu in (A mechanization method of geometry and its applications II. Curve pairs of Bertrand type, Kexue Tongbao 32, 585-588, 1987). The same problem was studied ... -
Some fixed point theorems on ordered uniform spaces
(Univ Nis, Fac Sci Math, 2009)In this paper, we introduce an order relation on uniform spaces and utilize this relation to prove some fixed point theorems for single and multi valued mappings in ordered uniform spaces. -
Vector metric spaces and some properties
(Juliusz Schauder Ctr Nonlinear Studies, 2009)In this paper we introduce vector metric spaces and we give some properties of this spaces. Also we prove Baire theorem and Banach fixed point theorem on this spaces. -
Some Fixed Point Theorems for Multi-Valued Weakly Uniform Increasing Operators
(C E D A M Spa Casa Editr Dott Antonio Milani, 2008)In the present work, we introduce the concept of weakly uniform increasing operators on an ordered spaces. We also give some common fixed point theorems for a pair of multivalued weakly uniform increasing operators in ... -
<i>I-convergence of positive linear operators on Lp weighted spaces
(Eudoxus Press, Llc, 2008)In this paper, using the concept of I-convergence we prove a Korovkin type approximation by means of positive linear operators defined on the weighted space L-p,L-w(R). Also we state its n-dimensional analogue for the ... -
Some fixed point theorems for weakly compatible multi valued mappings satisfying an implicit relation
(Univ Nis, Fac Sci Math, 2008)In this paper, we prove a common fixed point theorem for multivalued mappings under the condition of weak compatibility. Also, we define compatible maps of type (I) for multivalued mappings and prove a common fixed point ... -
A generalization of Szasz-Mirakyan operators based on q-integers
(Pergamon-Elsevier Science Ltd, 2008)In this paper, we introduce a generalization of Szasz-Mirakyan operators based on q-integers, that we call q-Szasz-Mirakyan operators. Depending on the selection of q, these operators are more flexible than the classical ... -
On Kantorovich process of a sequence of the generalized linear positive operators
(Taylor & Francis Inc, 2008)We define the Kantorovich variant of the generalized linear positive operators introduced by Ibragimov and Gadjiev in 1970. We investigate direct approximation result for these operators on p-weighted integrable function ... -
A fixed point theorem for multi-maps satisfying an implicit relation on metric spaces
(Univ Belgrade, Fac Electrical Engineering, 2008)We present a fixed point theorem for multi-valued mapping satisfying an implicit relation on metric spaces. -
q-generalizations of the Picard and Gauss-Weierstrass singular integrals
(Mathematical Soc Rep China, 2008)Introducing a higher order modulus of smoothness based on q-integers, in this paper first we obtain Jackson-type estimates in approximation by Jackson-type generalizations of the q-Picard and q-Gauss-Weierstrass singular ... -
A fixed fuzzy point for fuzzy mappings in complete metric spaces
(Univ Osijek, Dept Mathematics, 2008)In this paper we prove a fixed point theorem for fuzzy mappings over a complete metric space. -
Position vectors of a timelike and a null helix in Minkowski 3-space
(Pergamon-Elsevier Science Ltd, 2008)In this paper, we study the position vectors of a timelike and a null helix (or a W-curve), i.e. curve with constant curvatures in the Minkowski 3-space E-1(3). We give some characterizations for timelike and null helix ... -
Bleimann, Butzer, and Hahn Operators Based on the q-Integers
(Hindawi Publishing Corporation, 2007)We give a new generalization of Bleimann, Butzer, and Hahn operators, which includes q-integers. We investigate uniform approximation of these new operators on some subspace of bounded and continuous functions. In Section ... -
Fixed points of weakly compatible maps satisfying a general contractive condition of integral type
(Springer, 2007)We prove a fixed point theorem for weakly compatible maps satisfying a general contractive condition of integral type. Copyright (C) 2007. -
A common fixed point theorem for weakly compatible mappings in symmetric spaces satisfying an implicit relation
(Soc Matematica Mexicana, 2007)In this paper, we prove a common fixed point theorem for weakly compatible mappings in symmetric spaces satisfying an implicit relation and a fixed point thorems under strict contractive conditions, J. Math. Anal. Appl. ... -
The estimates of approximation by using a new type of weighted modulus of continuity
(Pergamon-Elsevier Science Ltd, 2007)In this paper, we introduce a new type modulus of continuity for function f belonging to a particular weighted subspace of C (0, infinity) and show that it has some properties of ordinary modulus of continuity. We obtain ... -
Approximation of functions of two variables by certain linear positive operators
(Springer India, 2007)We introduce certain linear positive operators and study some approximation properties of these operators in the space of functions, continuous on a compact set, of two variables. We also find the order of this approximation ... -
Position vectors of a spacelike W-curve in minkowski space E1 3
(Korean Mathematical Soc, 2007)In this paper, we study the position vectors of a spacelike W-curve (or a helix), i.e., curve with constant curvatures, with spacelike, timelike and null principal normal in the Minkowski 3-space E-1(3). We give some ... -
On behaviour of the Riesz and generalized Riesz potentials as order tends to zero
(Element, 2007)In this paper, we present the Riesz potentials I-alpha and the generalized Riesz potentials I-v(alpha) as the families of positive linear operators, depending on parameter alpha > 0. We investigate their pointwise convergence ...