Results 61 to 70 of about 998 (123)

The Applications of Differential Subordinations in the Unit Disk

open access: yesJournal of Applied Computer Science & Mathematics, 2009
In this paper we present a few the applications ofdifferential subordinations , on the class of admissible functions[ q] Ψn Ω, . These are actually generalizations (extensions) ofcertain results published in the paper [4].2000 Mathematics Subject ...
Anamaria Macovei
doaj  

Starlike and convexity properties of q-Bessel-Struve functions

open access: yesDemonstratio Mathematica, 2022
This paper introduces three different normalization associated with the second and third q-Bessel-Struve functions. We use Hadamard factorizations to determine the radii of starlike and convexity of these functions.
Oraby Karima M., Mansour Zeinab S. I.
doaj   +1 more source

Properties of a subclass of analytic functions defined by Riemann-Liouville fractional integral applied to convolution product of multiplier transformation and Ruscheweyh derivative

open access: yesDemonstratio Mathematica, 2023
The contribution of fractional calculus in the development of different areas of research is well known. This article presents investigations involving fractional calculus in the study of analytic functions. Riemann-Liouville fractional integral is known
Alb Lupaş Alina, Acu Mugur
doaj   +1 more source

Analytic solutions of the generalized water wave dynamical equations based on time-space symmetric differential operator

open access: yesJournal of Ocean Engineering and Science, 2020
It is well known that there is a deep connection between the symmetric and traveling wave solutions. It has been shown that all symmetric waves are traveling waves.
Rabha W. Ibrahim   +3 more
doaj  

On λ-pseudo-starlike functions

open access: yes, 2013
In this paper, we isolate some new, interesting classes of λ -pseudo-starlike univalent functions in the open unit disk E = {z ∈ C : |z| < 1} . Some characterizations of them are obtained and examples given.
K. O. Babalola
semanticscholar   +1 more source

Coefficient estimates for new subclasses of Ma-Minda bi-univalent functions

open access: yesJournal of Inequalities and Applications, 2013
In this paper, we introduce and investigate two new subclasses Hσμ(λ,φ) and Mσγ(λ,μ,φ) of Ma-Minda bi-univalent functions defined by using subordination in the open unit disk D={z∈C:|z|
Huo Tang, Guantie Deng, Shuhai Li
semanticscholar   +1 more source

Coefficient bounds for certain subclasses of bi-univalent functions

open access: yes, 2013
In this paper, we introduce and investigate two new subclasses of the function class Σ of bi-univalent functions. Also, we find estimates of |a2| and |a3|. Some related consequences of the results are also pointed out. Mathematics Subject Classification:
N. Magesh, J. Yamini
semanticscholar   +1 more source

Initial coefficient bounds for certain class of meromorphic bi-univalent functions

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In this paper, we introduce and investigate an interesting subclass of meromorphic bi-univalent functions defined on Δ = {z ∈ ℂ: 1 < |z| < ∞}. For functions belonging to this class, estimates on the initial coefficients are obtained.
Zireh Ahmad, Salehian Safa
doaj   +1 more source

Sharp bounds of Fekete-Szegő functional for quasi-subordination class

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In the present paper, we introduce a certain subclass 𝒦q(λ, γ, h) of analytic functions by means of a quasi-subordination. Sharp bounds of the Fekete-Szegő functional for functions belonging to the class 𝒦q(λ, γ, h) are obtained. The results presented in
Kant Shashi, Vyas Prem Pratap
doaj   +1 more source

Modified Hadamard product properties of certain class of analytic functions with varying arguments defined by the convolution of Sǎlǎgean and Ruscheweyh derivative

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In this paper we study the Hadamard product properties of certain class of analytic functions with varying arguments defined by the convolution of Sǎlǎgean and Ruscheweyh derivative.
Páll-Szabó Ágnes Orsolya
doaj   +1 more source

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