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Toplam kayıt 302, listelenen: 1-20
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Some families of multivalently analytic functions with negative coefficients
(Academic Press Inc Jnl-Comp Subscriptions, 1997)The authors introduce and study three novel subclasses of analytic and p-valent functions with negative coefficients. In addition to finding a necessary and sufficient condition for a function to belong to each of these ... -
A certain subclass of analytic functions involving operators of fractional calculus
(Pergamon-Elsevier Science Ltd, 1998)Making use of certain operators of fractional calculus, we introduce a new class T-mu(n,lambda,alpha) of functions which are analytic and univalent in the open unit disk U and obtain a necessary and sufficient condition ... -
Some inequalities on P-valently starlike and P-valently convex functions
(1999)In this paper, some inequalities on p-valently starlike functions and p-valently convex functions are given. Moreover, some consequences of the inequalities which are important for geometric function theory are also included. -
Lorentzian circle as a Lie group and a C ∞ action on Lorentz spaces of two dimension
(1999)We define a product on Lorentz circle that is similar to Lorentzian inner product. This product is expanded to Lorents space of two dimension. So we have an C{\infty} action of Lorentz circle on Lorents space of two ... -
Lorentzian cylinder Lie group in R51 and its a C∞-action
(2005)Bu çalışmadaR_14 de Lorentz birim küresi veR_15 de Lorentz silindiri üzerinde birer grup işlemi tanımlandı ve bu işlemlerle birlikte bunların birer Lie grubu olduğu gösterildi. R\ de 1-yarıçaplı Lorentz silindir Lie grubunun, ... -
A Dirichlet problem for generalized analytic functions
(2006)For the existence of the solution for the Dirichlet Problem frac{partial w}{partial overline{z}}-(AwBoverline{w}), z in D Rew_{partial D}g, g in C{alpha}partial D Imw(z_0)c_0, z_0 in overline{D} in a domain having a smooth ... -
A boundary value problem for nonhomogeneous Vekua equation in Wiener-type domains
(2007)In this article we take the nonhomogeneous Vekua equation w_{\overline{z}} Aw B\overline{w} F; z \in D subject to the conditions Rew \partial D\varphi , \varphi \in C{\alpha}(\partial D) Imw (z_0) c_0 , z_0 \in overline{D}. ... -
Some characterizations of rectifying curves in the Euclidean space E4
(2008)In this paper, we define a rectifying curve in the Euclidean 4-space as a curve whose position vector always lies in orthogonal complement N{\perp} of its principal normal vector field N. In particular, we study the ... -
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 ... -
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 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. -
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 ... -
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 ... -
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 ... -
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. -
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 ...