Results 11 to 20 of about 318 (145)

Best Subordinant for Differential Superordinations of Harmonic Complex-Valued Functions [PDF]

open access: yesMathematics, 2020
The theory of differential subordinations has been extended from the analytic functions to the harmonic complex-valued functions in 2015. In a recent paper published in 2019, the authors have considered the dual problem of the differential subordination ...
Georgia Irina Oros
doaj   +3 more sources

Differential Subordination and Superordination Results Associated with Mittag–Leffler Function

open access: yesMathematics, 2021
In this paper, we derive a number of interesting results concerning subordination and superordination relations for certain analytic functions associated with an extension of the Mittag–Leffler function.
Adel A. Attiya   +3 more
doaj   +4 more sources

Generalized Briot-Bouquet Differential Equation Based on New Differential Operator with Complex Connections

open access: yesAxioms, 2020
A class of Briot–Bouquet differential equations is a magnificent part of investigating the geometric behaviors of analytic functions, using the subordination and superordination concepts. In this work, we aim to formulate a new differential operator with
Rabha W. Ibrahim   +2 more
doaj   +4 more sources

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   +5 more sources

Fuzzy Differential Subordination and Superordination Results Involving the q-Hypergeometric Function and Fractional Calculus Aspects

open access: yesMathematics, 2022
The concepts of fuzzy differential subordination and superordination were introduced in the geometric function theory as generalizations of the classical notions of differential subordination and superordination.
Alina Alb Lupaş, Georgia Irina Oros
doaj   +2 more sources

Differential Subordination and Superordination of Multivalent Functions Involving Differential Operator [PDF]

open access: yesAl-Mustansiriyah Journal of Science, 2021
In the present work, we derive some properties of subordination and superordination results associated with the Hadamard product concept involving the composition of the differential operator.
Huda Fawzi Isawi, Abdul Rahman S. Juma
doaj   +2 more sources

Applications of the Fractional Calculus in Fuzzy Differential Subordinations and Superordinations [PDF]

open access: yesMathematics, 2021
The fractional integral of confluent hypergeometric function is used in this paper for obtaining new applications using concepts from the theory of fuzzy differential subordination and superordination.
Alina Alb Lupaş
doaj   +2 more sources

Differential superordination for harmonic complex-valued functions [PDF]

open access: yesStudia Universitatis Babes-Bolyai Matematica, 2019
In a previously published paper,in 2015, S. Kanas introduced the differential subordination for harmonic complex-valued functions. In this article,we introduce the dual notion of differential superordination for harmonic complex-valued functions.
Georgia Irina Oros, Gheorghe Oros
openaire   +3 more sources

Differential Subordination and Superordination for Srivastava-Attiya Operator [PDF]

open access: yesInternational Journal of Differential Equations, 2011
Due to the well-known Srivastava-Attiya operator, we investigate here some results relating the p-valent of the operator with differential subordination and subordination. Further, we obtain some interesting results on sandwich-type theorem for the same.
Maisarah Haji Mohd, Maslina Darus
doaj   +3 more sources

Introducing the Third-Order Fuzzy Superordination Concept and Related Results

open access: yesMathematics
Third-order fuzzy differential subordination studies were recently initiated by developing the main concepts necessary for obtaining new results on this topic.
Georgia Irina Oros   +2 more
doaj   +2 more sources

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