Results 71 to 80 of about 217 (136)

Differential sandwich theorems for p-valent functions associated with generalized multiplier transformations

open access: yesLe Matematiche, 2013
In this paper, we obtain some applications of theory of differential subordination, superordination and sandwich results involving an operator.
R. M. El-Ashwah   +3 more
doaj  

Results for Multivalent Functions Third-Order Differential Subordination and Superordination by Using New Differential Operator

open access: yesWasit Journal for Pure Sciences
the aim of this study was to give results differential Subordination and Superordination for analytic functions on third order and obtain some sandwich results through the new ...
maryam dheyaa alquzweeni
doaj   +1 more source

Some Properties of Certain Multivalent Analytic Functions Involving the Cătas Operator

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We introduce a certain subclass of multivalent analytic functions by making use of the principle of subordination between these functions and Cătas operator.
E. A. Elrifai   +2 more
doaj   +1 more source

Certain Subordination and Superordination Properties of Analytic Functions

open access: yesWSEAS TRANSACTIONS ON MATHEMATICS
In this paper, we extract some subordination and Superordination properties using the characteristics of the generalized byproduct operator. The article aims to demonstrate some applications of the differential subordination concept to univalent function subclasses that contain specific convolutions as operators.
Mustafa I. Hameed   +6 more
openaire   +1 more source

STRONG DIFFERENTIAL SUBORDINATION AND SUPERORDINATION OF NEW GENERALIZED DERIVATIVE OPERATOR

open access: yesKorean Journal of Mathematics, 2015
Summary: In this work, certain classes of admissible functions are considered. Some strong differential subordination and superordination properties of analytic functions associated with new generalized derivative operator \(\mathfrak{B}^{\mu,q,s}_{\lambda_1,\lambda_2,\ell,d}\) are investigated.
Oshah, Anessa, Darus, Maslina
openaire   +3 more sources

Some Outcomes Involving a Specific Class of Functions over Differential Subordination and Superordination

open access: yesمجلة بغداد للعلوم
This work investigates several aspects of differential subordination and superordination, leading to the inclusion of a specific class within the domain of univalent meromorphic functions in a perforated open unit disc and deriving a few sandwich ...
Mustafa I. Hameed   +5 more
doaj   +1 more source

Double Subordination-Preserving Properties for Certain Integral Operators

open access: yesJournal of Inequalities and Applications, 2007
The purpose of the present paper is to obtain the sandwich-type theorem which contains the subordination- and superordination-preserving properties for certain integral operators defined on the space of normalized analytic functions in the open unit ...
Owa Shigeyoshi, Cho Nak Eun
doaj   +2 more sources

Subordination and Superordination on Schwarzian Derivatives

open access: yesJournal of Inequalities and Applications, 2008
Let the functions be analytic and let be analytic univalent in the unit disk. Using the methods of differential subordination and superordination, sufficient conditions involving the Schwarzian derivative of a normalized analytic function are ...
Ravichandran V   +2 more
doaj  

On a differential subordination and superordination of a new class of meromorphic functions

open access: yesLe Matematiche, 2014
In this paper, we investigate differential subordination and superordination properties of a new class of meromorphic analytic functions in the punctured unit disc.We derive some sandwich theorems.
Ali Muhammad, Marjan Saeed
doaj  

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