Results 21 to 30 of about 2,312 (185)

Subordination and Superordination Results for a Class of Analytic Multivalent Functions [PDF]

International Journal of Mathematics and Mathematical Sciences, 2008
We derive subordination and superordination results for a family of normalized analytic functions in the open unit disk defined by integral operators. We apply this to obtain sandwich results and generalizations of some known results.
Sukriti Goyal, Pranay Goswami, Herbert J. Silverman   +2 more
openalex   +2 more sources

Fuzzy Differential Subordination and Superordination Results for Fractional Integral Associated with Dziok-Srivastava Operator [PDF]

Mathematics, 2023
Fuzzy set theory, introduced by Zadeh, gives an adaptable and logical solution to the provocation of introducing, evaluating, and opposing numerous sustainability scenarios.
Alina Alb Lupaş
openalex   +3 more sources

Properties of Differential Subordination and Superordination for Multivalent Functions Associated with the Convolution Operators [PDF]

Axioms, 2023
Using convolution (or Hadamard product), we define the El-Ashwah and Drbuk linear operator, which is a multivalent function in the unit disk U=w ...
Luminiţa-Ioana Cotîrlă, Abdul Rahman S. Juma   +1 more
openalex   +3 more sources

On some classes of meromorphic functions defined by subordination and superordination [PDF]

Opuscula Mathematica, 2011
Let \(p\in \mathbb{N}^*\) and \(\beta,\gamma\in \mathbb{C}\) with \(\beta\neq 0\) and let \(\Sigma_p\) denote the class of meromorphic functions of the form \(g(z)=\frac{a_{-p}}{z^p}+a_0+a_1 z+\ldots,\,z\in \dot U\), \(a_{-p}\neq 0\).
Alina Totoi
openalex   +2 more sources

New Developments on the Theory of Third-Order Differential Superordination Involving Gaussian Hypergeometric Function

Mathematics, 2023
The present research aims to present new results regarding the fundamental problem of providing sufficient conditions for finding the best subordinant of a third-order differential superordination. A theorem revealing such conditions is first proved in a
Georgia Irina Oros, Lavinia Florina Preluca   +1 more
doaj   +1 more source

Application of subordination and superordination for multivalent analytic functions associated with differintegral operator

AIMS Mathematics, 2023
The results from this paper are related to the geometric function theory. In order to obtain them, we use the technique based on the properties of the differential subordination and superordination one of the newest techniques used in this field, we ...
Ekram E. Ali, Rabha M. El-Ashwah, R. Sidaoui   +2 more
doaj   +1 more source

Differential inequalities imposed by the extended hypergeometric function [PDF]

Springerplus, 2016
AO Mostafa, G Murugusundaramoorthy, HM Srivastava, HM Srivastava, KL Noor, L Branges de, MK Aouf, MK Aouf, N Magesh, N Magesh, N Magesh, P Agarwal, R Ali, RW Ibrahim, RW Ibrahim, S Owa, SS Miller, SS Miller, T Bulboaca, T Bulboaca, TN Shanmugam   +20 more
core   +2 more sources

A Class of Integral Operators Preserving Subordination and Superordination

Journal of Inequalities and Applications, 2008
We give some subordination- and superordination-preserving properties of certain nonlinear integral operators defined on the space of normalized analytic functions in the open unit disk.
Cho NakEun, Kim InHwa
doaj   +2 more sources

Fuzzy differential subordination and superordination results for q -analogue of multiplier transformation

AIMS Mathematics, 2023
In this paper the authors combine the quantum calculus applications regarding the theories of differential subordination and superordination with fuzzy theory.
Alina Alb Lupaş , Shujaat Ali Shah, Loredana Florentina Iambor   +2 more
doaj   +1 more source