Yayıncı "Univ Nis, Fac Sci Math" Fen Edebiyat Fakültesi için listeleme
Toplam kayıt 19, listelenen: 1-19
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Approximation by a Generalization of the Jakimovski-Leviatan Operators
(Univ Nis, Fac Sci Math, 2019)In this paper, we introduce a Kantorovich type generalization of Jakimovski-Leviatan operators constructed by A. Jakimovski and D. Leviatan (1969) and the theorems on convergence and the degree of convergence are established. ... -
Approximation Properties of Szasz Type Operators Involving Charlier Polynomials
(Univ Nis, Fac Sci Math, 2017)In this paper, we give some approximation properties of Szasz type operators involving Charlier polynomials in the polynomial weighted space and we give the quantitative Voronovskaya-type asymptotic formula. -
Ciric Type Generalized F-contractions on Complete Metric Spaces and Fixed Point Results
(Univ Nis, Fac Sci Math, 2014)Recently, Wardowski [15] introduced the concept of F-contraction on complete metric space. This type contraction is proper generalization of ordinary contraction. In the present paper, we give some fixed point results for ... -
Common fixed point of g-approximative multivalued mapping in partially ordered metric space
(Univ Nis, Fac Sci Math, 2013)In this paper, we introduce g-approximative multivalued mappings. Based on this definition, we gave some new definitions. Further, common fixed point results for g-approximative multivalued mappings satisfying generalized ... -
Direct Estimates for Lupas-Durrmeyer Operators
(Univ Nis, Fac Sci Math, 2016)The generalization of the Bernstein polynomials based on Polya distribution was first considered by Stancu [14]. Very recently Gupta and Rassias [6] proposed the Durrmeyer type modification of the Lupas, operators and ... -
Fixed Point Results for F-contractions on Space with Two Metrics
(Univ Nis, Fac Sci Math, 2017)In this paper, taking into account two metrics on a space, we present a new fixed point theorem for F-contractions. Our theorem includes both Agarwal and O'Regan's and Wardowski's results as properly. Also we provide a ... -
A Fixed Point Theorem for JS-contraction Type Mappings with Applications to Polynomial Approximations
(Univ Nis, Fac Sci Math, 2017)A fixed point theorem is established for a new class of JS-contraction type mappings. As applications, some Kelisky-Rivlin type results are obtained for linear and nonlinear q-Bernstein-Stancu operators. -
General Helices with Lightlike Slope Axis
(Univ Nis, Fac Sci Math, 2018)In this paper, we investigate general helices with lightlike slope axis. We give necessary and sufficient conditions for a general helix to have a lightlike slope axis. We obtain parametric equation of all general helices ... -
Multivalued Almost F-contractions on Complete Metric Spaces
(Univ Nis, Fac Sci Math, 2016)In the present paper, considering a new concept of multivalued almost F-contraction, we give a general class of multivalued weakly Picard operators on complete metric spaces. Also, we give some illustrative examples showing ... -
New Integral Type Operators
(Univ Nis, Fac Sci Math, 2017)In this paper we construct new integral type operators including heritable properties of Baskakov Durrmeyer and Baskakov Kantorovich operators. Results concerning convergence of these operators in weighted space and the ... -
On Approximation Properties of Baskakov-Schurer-Szasz Operators Preserving Exponential Functions
(Univ Nis, Fac Sci Math, 2018)The goal of this paper is to construct a general class of operators which has known BaskakovSchurer-Szasz that preserving constant and e(2ax), a > 0 functions. Also, we demonstrate the fact that for these operators, moments ... -
Quantitative Voronovskaya Type Theorems For A General Sequence of Linear Positive Operators
(Univ Nis, Fac Sci Math, 2019)The present paper deal with the obtaining quantitative form of the results presented Butzer & Karsli [1]. That is, we prove quantitative simultaneous results by general sequence of positive linear operators which are valid ... -
Some common fixed point theorems in vector metric spaces
(Univ Nis, Fac Sci Math, 2011)In this paper we give some theorems on point of coincidence and common fixed points for two self mappings satisfying some general contractive conditions in vector metric spaces. Our results generalize some well-known recent ... -
Some fixed point results on weak partial metric spaces
(Univ Nis, Fac Sci Math, 2013)The concept of partial metric p on a nonempty set X was introduced by Matthews [13] and it was slightly modified by Heckmann [11] as weak partial metric. In [12], the authors studied fixed point result of new extension of ... -
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 ... -
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. -
Some generalizations of Caristi type fixed point theorem on partial metric spaces
(Univ Nis, Fac Sci Math, 2012)… -
Statistical (C, 1) (E, 1) Summability and Korovkin's Theorem
(Univ Nis, Fac Sci Math, 2016)Korovkin-type approximation theory usually deals with convergence analysis for sequences of positive operators. This approximation theorem was extended to more general space of sequences via different way such as statistical ... -
Weighted Approximation by New Bernstein-Chlodowsky-Gadjiev Operators
(Univ Nis, Fac Sci Math, 2013)In the present paper, we introduce Bernstein-Chlodowsky-Gadjiev operators taking into consideration the polynomials introduced by Gadjiev and Ghorbanalizadeh [2]. The interval of convergence of the operators is a moved ...