Güncel Gönderiler: Matematik Bölümü
Toplam kayıt 330, listelenen: 281-300
-
Characterizations of slant helices in Euclidean 3-space
(Scientific Technical Research Council Turkey-Tubitak, 2010)In this paper we investigate the relations between a general helix and a slant helix. Moreover, we obtain some differential equations which they are characterizations for a. space curve to be a slant helix. Also, we obtain ... -
Some Fixed Point Theorems on Ordered Metric Spaces and Application
(Springer International Publishing Ag, 2010)We present some fixed point results for nondecreasing and weakly increasing operators in a partially ordered metric space using implicit relations. Also we give an existence theorem for common solution of two integral equations. -
Ordered Non-Archimedean Fuzzy Metric Spaces and Some Fixed Point Results
(Springer, 2010)In the present paper we provide two different kinds of fixed point theorems on ordered nonArchimedean fuzzy metric spaces. First, two fixed point theorems are proved for fuzzy order phi-contractive type mappings. Then a ... -
Coupled fixed point theorems for contractions in fuzzy metric spaces
(Pergamon-Elsevier Science Ltd, 2010)In the present work, we prove a coupled fixed point theorem for contractive mappings in complete fuzzy metric spaces. (C) 2009 Elsevier Ltd. All rights reserved. -
On the Durrmeyer type modification of the q-Baskakov type operators
(Pergamon-Elsevier Science Ltd, 2010)This paper deals with Durrmeyer type generalization of q-Baskakov type operators using the concept of q-integral, which introduces a new sequence of positive q-integral operators. We show that this sequence is an approximation ... -
Some fixed point theorems for single and multi valued mappings on ordered non-Archimedean fuzzy metric spaces
(Univ Sistan & Baluchistan, 2010)In the present paper, a. partial order on a non- Archimedean fuzzy metric, space under the Lukasiewicz t-norm is introduced and fixed point theorem's for single and multivalued mappings are proved. -
Fixed point and common fixed point theorems on ordered cone metric spaces
(Pergamon-Elsevier Science Ltd, 2010)In the present work, some fixed point and common fixed point theorems for self-maps on ordered cone metric spaces, where the cone is not necessarily normal, are proved. (C) 2009 Elsevier Ltd. All rights reserved. -
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 ...