Results 21 to 30 of about 58 (52)

A Class of Nonlinear Integral Operators Preserving Double Subordinations

Abstract and Applied Analysis, Volume 2008, Issue 1, 2008., 2008
The purpose of the present paper is to investigate some subordination‐ and superordination‐preserving properties of certain integral operators defined on the space of meromorphic functions in the punctured open unit disk. The sandwich‐type theorem for these integral operators is also considered.
Oh Sang Kwon, Nak Eun Cho, Stevo Stevic
wiley   +1 more source

Third-Order Fuzzy Subordination and Superordination on Analytic Functions on Punctured Unit Disk

Axioms
This work’s theorems and corollaries present new third-order fuzzy differential subordination and superordination results developed by using a novel convolution linear operator involving the Gaussian hypergeometric function and a previously studied ...
Ekram E. Ali, Georgia Irina Oros, Rabha M. El-Ashwah, Abeer M. Albalahi   +3 more
doaj   +1 more source

On sandwich theorems for some classes of analytic functions

International Journal of Mathematics and Mathematical Sciences, Volume 2006, Issue 1, 2006., 2006
The purpose of this present paper is to derive some subordination and superordination results for certain normalized analytic functions in the open unit disk. Relevant connections of the results, which are presented in the paper, with various known results are also considered.
T. N. Shanmugam, S. Sivasubramanian, H. Silverman   +2 more
wiley   +1 more source

Sandwich Theories for Pascal Distribution–Related Univalent Functions

International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.
This paper investigates differential subordination and superordination for univalent functions, emphasizing operators derived from the Pascal distribution. Motivated by the limited existing results using this operator, the study establishes new sandwich‐type theorems.
Fatma Z. El-Emam, Samar M. Madian, Shikha Binwal   +2 more
wiley   +1 more source

On Certain Subclasses of Analytic Functions Associated with a Symmetric q-Differential Operator

Mathematics
This paper explores a class of analytic functions defined in the open unit disk by means of a symmetric q-differential operator. In the first part, we derive sufficient conditions for functions to belong to a subclass associated with this operator, using
Vasile-Aurel Caus
doaj   +1 more source

Strong Sandwich-Type Results for Fractional Integral of the Extended q-Analogue of Multiplier Transformation

Mathematics
In this research, we obtained several strong differential subordinations and strong differential superordinations, which gave sandwich-type results for the fractional integral of the extended q-analogue of multiplier transformation.
Alina Alb Lupaş
doaj   +1 more source

Application on Fuzzy Third-Order Subordination and Superordination Connected with Lommel Function

Mathematics
This work is based on the recently introduced concepts of third-order fuzzy differential subordination and its dual, third-order fuzzy differential superordination.
Ekram E. Ali, Georgia Irina Oros, Rabha M. El-Ashwah, Abeer M. Albalahi   +3 more
doaj   +1 more source

Third-Order Fuzzy Differential Subordination and Superordination via Generalized Mittag-Leffler Operator with Applications in Decision Making

Mathematics
This article focuses on the notions of third-order fuzzy differential subordination and superordination associated with the generalized Mittag-Leffler operator.
Borhen Halouani, Bushra Kanwal, Saba Shabir, Maslina Darus, Tariq Alsmadi, Ibrahim S. Elshazly   +5 more
doaj   +1 more source

Dominance rank and the presence of sexually receptive females predict feces-measured body temperature in male chimpanzees. [PDF]

Behav Ecol Sociobiol, 2020
Negrey JD, Sandel AA, Langergraber KE.
europepmc   +1 more source

Differential inequalities imposed by the extended hypergeometric function. [PDF]

Springerplus, 2016
Ibrahim RW, Ahmad MZ, Al-Janaby HF.
europepmc   +1 more source