Güncel Gönderiler: Matematik Bölümü
Toplam kayıt 330, listelenen: 221-240
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Reverse Hardy-type inequalities for supremal operators with measures
(Element, 2015)In this paper we characterize the validity of the inequalities parallel to g parallel to(p,(a, b),lambda) <= c parallel to u(x)parallel to g parallel to(infinity,(x,b),mu) parallel to(q,(a,b),nu) and parallel to g parallel ... -
Generalized Null Bertrand Curves In Minkowski Space-Time
(Univ Al I Cuza, Fac Math, 2014)COKEN and CIFTCI proved that a null Cartan curve in Minkowski space-time E-1(4) is a null Bertrand curve if and only if k(2) is nonzero constant and k(3) is zero. That is, the null curve with non-zero curvature k(3) is not ... -
Fixed Point Results for α-ψ-Contractive Mappings Including Almost Contractions and Applications
(Hindawi Publishing Corp, 2014)In the recent paper (B. Samet, C. Vetro, and P. Vetro, Fixed point theorems for alpha-psi-contractive type mappings, Nonlinear Analysis. Theory, Methods and Applications, 75 (2012), 2154-2165.), the authors introduced the ... -
A fixed point theorem for (φ,L)-weak contraction mappings on a partial metric space
(Int Scientific Research Publications, 2014)In this paper, we explore (phi, L)-weak contractions of Berinde by obtaining Suzuki-type fixed point results. Thus, we obtain generalized fixed point results for Kannan's, Chatterjea's and Zamfirescu's mappings on a ... -
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 ... -
Generalized Meir-Keeler type n-tupled fixed point theorems in ordered partial metric spaces
(Springer International Publishing Ag, 2014)In this paper, we prove n-tupled fixed point theorems (for even n) for mappings satisfying Meir-Keeler type contractive condition besides enjoying mixed monotone property in ordered partial metric spaces. As applications, ... -
Characterizations of timelike slant helices in Minkowski 3-space
(Univ Osijek, Dept Mathematics, 2014)In this paper, we investigate the tangent indicatrix, the principal normal indicatrix and the binormal indicatrix of a timelike curve in Minkowski 3-space E-1(3) and we construct their Frenet equations and curvature ... -
On the Generalized Szasz-Mirakyan Operators
(Springer Basel Ag, 2014)In this paper, we construct sequences of Szasz-Mirakyan operators which are based on a function.. This function not only characterizes the operators but also characterizes the Korovkin set {1, rho, rho(2)} in a weighted ... -
Commutators of sublinear operators generated by Caldern-Zygmund operator on generalized weighted Morrey spaces
(Springer Heidelberg, 2014)In this paper, the boundedness of a large class of sublinear commutator operators T (b) generated by a Caldern-Zygmund type operator on a generalized weighted Morrey spaces with the weight function w belonging to Muckenhoupt's ... -
Approximation by a complex q-Baskakov-Stancu operator in compact disks
(Springeropen, 2014)In this paper, we consider a complex q-Baskakov-Stancu operator and study some approximation properties. We give a quantitative estimate of the convergence, Voronovskaja-type result and exact order of approximation in ... -
New fixed point results for maps satisfying implicit relations on ordered metric spaces and application
(Elsevier Science Inc, 2014)We give some fixed point results for one and two mappings satisfying an implicit relation involving control function on ordered complete metric spaces. We furnish suitable examples to demonstrate the validity of the ... -
Jackson Type Generalization of Nonlinear Integral Operators
(Eudoxus Press, Llc, 2014)In this work, we provides a global smoothness preservation result of a Jackson-type generalization of the nonlinear convolution operator defined by Angeloni and Vinti in [4]. Convergence in variation is also studied. -
Power series of Beta operators
(Elsevier Science Inc, 2014)In this paper we investigate the power series of Beta operators. We first study the convergence of this series and describe the Voronovskaya operator A and the inverse Voronovskaya operator. Then, a quantitative convergence ... -
Generalized multivalued F-contractions on complete metric spaces
(Iranian Mathematical Soc, 2014)In the present paper, we introduce the concept of generalized multivalued F-contraction mappings and give a fixed point result, which is a proper generalization of some multivalued fixed point theorems including Nadler's. -
Common fixed point of g-approximative multivalued mapping in ordered partial metric space
(Springer International Publishing Ag, 2013)In this paper, we introduce g-approximative multivalued mappings to a partial metric space. Based on this definition, we give some new definitions. Further, common fixed point results for g-approximative multivalued mappings ... -
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 ... -
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 ... -
Multivalued Pseudo-Picard Operators and Fixed Point Results
(Hindawi Ltd, 2013)We introduce the concept of multivalued pseudo-Picard (MPP) operator on ametric space. This concept is weaker than multivalued weakly Picard (MWP) operator, which is given by M. Berinde and V. Berinde (2007). Then, we give ... -
On the Involute-Evolute of the Pseudonull Curve in Minkowski 3-Space
(Hindawi Publishing Corporation, 2013)We have generalized the involute and evolute curves of the pseudonull curves alpha in E-1(3); that is, alpha is a spacelike curve with a null principal normal. Firstly, we have shown that there is no involute of the ... -
Korovkin-Type Theorems in Weighted Lp-Spaces via Summation Process
(Hindawi Ltd, 2013)Korovkin-type theorem which is one of the fundamental methods in approximation theory to describe uniform convergence of any sequence of positive linear operators is discussed on weighted L-p spaces, 1 <= p < infinity for ...