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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 ... -
On accelerated iterative methods for the solution of systems of linear equations
(Taylor & Francis Ltd, 2002)In literature, it has been reported that the convergence of some preconditioned stationary iterative methods using certain type upper triangular matrices as preconditioners are faster than the basic iterative methods. In ... -
Subspaces of A-statistically convergent sequences
(Akademiai Kiado, 2003)Let A be a nonnegative regular summability method. In this paper we deal with various subspaces of A-statistically convergent sequences by using the rate of convergence concept. We show, under certain conditions, that these ... -
Fixed point of multivalued mapping in uniform spaces
(Indian Academy Sciences, 2003)In this paper we prove some new fixed point theorems for multivalued mappings on orbitally complete uniform spaces. -
Fixed point theorems on uniform spaces
(Indian Nat Sci Acad, 2003)Two general fixed point theorems for F: (X, U) --> (2(X), U*) are proved. Examples are given to illustrate the generality of the theorems. -
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}. ... -
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. -
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 ... -
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 ...