Results 11 to 20 of about 101,039,394 (126)

Bounded Doubly Close-to-Convex Functions [PDF]

open access: yesAbstract and Applied Analysis, 2014
We consider a new class CC(α,β) of bounded doubly close-to-convex functions. Coefficient bounds, distortion theorems, and radius of convexity for the class CC(α,β) are investigated.
Dorina Răducanu
doaj   +6 more sources

Subclasses of close-to-convex functions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
Let 𝒦[C,D], −1 ...
E. M. Silvia
doaj   +2 more sources

Generalized Alpha-Close-to-Convex Functions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
We define the classes Gβ(α,k,γ) as follows: f∈Gβ(α,k,γ) if and only if, for z∈E={z∈ℂ:|z|
K. Inayat Noor   +2 more
doaj   +4 more sources

On close-to-convex functions of complex order [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
The class S*(b) of starlike functions of complex order b was introduced and studied by M.K. Aouf and M.A. Nasr. The authors using the Ruscheweyh derivatives introduce the class K(b) of functions close-to-convex of complex order b, b≠0 and its ...
H. S. Al-Amiri, Thotage S. Fernando
doaj   +2 more sources

Weakly Close-to-Convex Meromorphic Functions

open access: yesCanadian Journal of Mathematics, 1989
Classes of functions, meromorphic and univalent inΔ = {z:|z|< 1}with simple pole at z = p, 0 < p < 1, have been discussed in several places in the literature ([3], [6], [8], [10], [11], and [12]). The purpose of this paper is to discuss a class of Close-to-Convex functions with pole at p analogous to the class of Close-to-Convex functions with
Landau-Treisner, Laurellen   +1 more
openaire   +3 more sources

On certain classes of close-to-convex functions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
A function f, analytic in the unit disk E and given by , f(z)=z+∑k=2∞anzk is said to be in the family Kn if and only if Dnf is close-to-convex, where Dnf=z(1−z)n+1∗f, n∈N0={0,1,2,…} and ∗ denotes the Hadamard product or convolution.
Khalida Inayat Noor
doaj   +3 more sources

On a Subclass of Meromorphic Close-to-Convex Functions [PDF]

open access: yesThe Scientific World Journal, 2014
The main purpose of this paper is to introduce and investigate a certain subclass of meromorphic close-to-convex functions. Such results as coefficient inequalities, convolution property, inclusion relationship, distortion property, and radius of ...
Ming-Liang Li, Lei Shi, Zhi-Gang Wang
doaj   +3 more sources

On Quasi Convex Functions and Hadamard's Inequality [PDF]

open access: yes, 2003
In this paper we establish some inequalities of Hadamard’s type involving Godunova-Levin functions, P-functions, quasi-convex functions, Jquasi- convex functions, Wright-convex functions and Wright-quasi-convex ...
Yang, Gou-Sheng   +2 more
core   +5 more sources

Hadamard Inequalities for Wright-Convex Functions [PDF]

open access: yes, 2003
In this paper, we establish serveral inequalities of Hadamard’s type for Wright-Convex ...
Yang, Gou-Sheng   +2 more
core   +6 more sources

On Some New Inequalities of Hermite-Hadamard-Féjer Type Involving Convex Functions [PDF]

open access: yes, 2005
In this paper, we establish some inequalities of Hermite-Hadamard- Fejér type for m-convex functions and s-convex ...
Hwang, Shiow-Ru   +2 more
core   +5 more sources

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