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On certain subclass of harmonic univalent functions defined by a generalized Ruscheweyh derivatives operator
Harmonic univalent functions Ruscheweyh derivative
2010/9/20
In this paper, the class SH(α, β; n, λ) of univalent harmonic and sense-preserving mappings in the unit disk is introduced. The distortion inequalities and extreme points for functions in the class SH...
Segment representation of a subclass of co-planar graphs
Segment representation a subclass of co-planar graphs
2010/11/11
A graph is said to be a segment graph if its vertices can be mapped to line segments in the plane such that two vertices have an edge between them if and only if their corresponding line segments int...
A subclass of quasi-convex functions with respect to symmetric points
convex with respect to symmetric points quasi-convex with respect to symmetric points coefficient estimates
2010/9/10
A subclass of quasi-convex functions with respect to symmetric points.
On new subclass of analytic univalent functions for operator on Hilbert space
Analytic function Hilbert space
2010/9/13
In the present paper, the authors introduce and study new subclass of normalized analytic univalent function S∗w (k, β) for some operator on Hilbert space.
On a Certain Subclass of Starlike Functions with Negative Coefficients
Univalent functions Starlike functions Integral means Neighborhoods Partial sums
2010/1/22
We introduce the class of analytic functions with negative coefficients. In this paper we give some properties of functions in the class and we obtain coefficient estimates, neighborhood and integ...
On a Certain Subclass of Analytic Functions Involving the Al-Oboudi Differential Operator
Close-to-convex function Close-to-starlike function Ruscheweyh derivative operator Al-Oboudi differential operator and subordination relationship
2010/1/22
In this paper we introduce a new subclass of normalized analytic functions in the open unit disc which is defined by the Al-Oboudi differential operator. A coefficient inequality, extreme points and i...
On Application of Differential Subordination for Certain Subclass of Meromorphically $p$-Valent Functions with Positive Coefficients Defined by Linear Operator
Meromorphic functions Differential subordination convolution (or Hadamard product) $p$-valent functions Linear operator $delta$-Neighborhood Integral representation Linear combination Weighted mean and Arithmetic mean
2010/1/22
This paper is mainly concerned with the application of differential subordinations for the class of meromorphic multivalent functions with positive coefficients defined by a linear operator satisfying...
Subclass of univalent functions with negative coefficients and starlike with respect to symmetric and conjugate points
Analytic functions univalent functions starlike with respect to symmetric points
2010/9/13
Subclass of univalent functions with negative coefficients and starlike with respect to symmetric and conjugate points
On Fekete-Szego problems for certain subclass of analytic functions
Analytic functions Subordination Starlike function,
2010/9/10
In this present investigation, the authors obtain Fekete-Szeg¨o inequality for certain normalized analytic function f(z) defined on the open unit disc for which z(Dn
λf(z))Dn λf(z) , (n ∈ N0, λ ≥ 0)...
The Alexander Transformation of a Subclass of Spirallike Functions of Type $ \beta$
Univalent functions Starlike functions of order $lpha$ spirallike functions of type $eta$ Integral transformations
2010/1/22
In this paper, a subclass of spirallike function of type denoted by is introduced in the unit disc of the complex plane. We show that the Alexander transformation of class of is univalent when , wh...
On a Subclass of Harmonic Univalent Functions
Convex harmonic functions Starlike harmonic functions extremal problems
2010/1/22
The class of univalent harmonic functions on the unit disc satisfying the condition is given. Sharp coefficient relations and distortion theorems are given for these functions. In this paper we fin...
Notes on Certain Subclass of $p$-Valently Bazilevič Functions
Analytic functions Multivalent functions Bazilevi{c} functions subordination between analytic functions Briot-Bouquet differential subordination
2010/1/22
In the present paper, we discuss a subclass of -valently Bazilevic functions, which was introduced and investigated recently by Patel [5]. Such results as inclusion relationship, coefficient inequal...
A New Subclass of $k$-Uniformly Convex Functions with Negative Coefficients
Analytic functions Univalent functions Coefficient inequalities and coefficient estimates Starlike functions Convex functions Close-to-convex functions $k$-Uniformly convex functions $k$-Uniformly starlike functions Uniformly starlike functions Hadamard product (or convolution) Extreme points Radii of close-to-convexity starlikeness and convexity Integral operators
2008/7/3
A New Subclass of $k$-Uniformly Convex Functions with Negative Coefficients.
A New Subclass of Uniformly Convex Functions and a Corresponding Subclass of Starlike Functions with Fixed Second Coefficient
Univalent Convex Starlike Uniformly convex Uniformly starlike Linear operator
2008/7/3
Making use of Linear operator theory, we define a new subclass of uniformly convex functions and a corresponding subclass of starlike functions with negative coefficients. The main object of this pape...
A Subclass of Uniformly Convex Functions Associated with Certain Fractional Calculus Operators
Univalent Convex Starlike Uniformly convex Fractional calculus integral operator
2008/7/3
In this paper, we introduce a new class of functions which are analytic and univalent with negative coefficients defined by using a certain fractional calculus and fractional calculus integral operato...