Results 91 to 100 of about 318 (145)

An Application of the Briot-Bouquet Integral Operator for Differential Superordinations

Journal of Applied Computer Science & Mathematics, 2009
The notion of differential superordination wasintroduced as a dual concept of diffrential subordination bythe S. S. Miller and P. T. Mocanu. Using properties of theBriot-Bouquet linear operator, we obtain differentialsubordinations and superordinatios for the function convex.2000 Mathematics Subject Classification: Primary 30C80;Secondary 30C45, 30A20,
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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

Differential subordinations and superordinations for analytic functions de ned by Salagean integro-differential operator [PDF]

Studia Universitatis Babes-Bolyai Matematica, 2019
In this paper we consider the $\mathscr{L}^{n}:\mathcal{A} \rightarrow \mathcal{A}$, \\ $\mathscr{L}^{n}f\left(z\right)=\left(1-\lambda\right)\mathscr{D}^{n}f\left(z\right)+\lambda I^{n}f\left(z\right)$ linear operator, where $\mathscr{D}^{n}$ is the S\v{a}l\v{a}gean differential operator and $I^{n}$ is the S\v{a}l\v{a}gean integral operator.
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Differential sandwich theorems for higher-order derivatives of p-valent functions involving a generalized differential operator

Le Matematiche, 2014
In the present article, we obtain some applications of first order differential subordination, superordination and sandwich results for higher-order derivatives of p-valent functions involving a generalized differential operator.
Mohamed K. Aouf, Rabha M. El-Ashwah, Ahmed M. Abd-Eltawab   +2 more
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Subordination and superordination of certain linear operator on meromorphic functions

, 2010
Using the methods of differential subordination and superordination, sufficient conditions are determined on the differential linear operator of meromorphic functions in the punctured unit disk to obtain, respectively, the best dominant and the best ...
Seoudy, T. M., Aouf, M. K.
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The Compressed Vocabulary of Microbial Life. [PDF]

Front Microbiol, 2021
Caetano-Anollés G.
europepmc   +1 more source

Subordination and superordination of certain linear operator on meromorphic functions

, 2016
Using the methods of differential subordination and superordination, sufficient conditions are determined on the differential linear operator of meromorphic functions in the punctured unit disk to obtain, respectively, the best dominant and the best ...
Seoudy, T. M., Aouf, M. K.
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Differential sandwich theorems of symmetric points associated with Dziok-Srivastava operator

Le Matematiche, 2013
In this paper we obtain some applications of theory of differential subordination, superordination and sandwich results for the classes of symmetric points associated with Dziok-Srivastava operator.
Rabba M. El-Ashwah, Mohamed K. Aouf, Ali Shamandy, Sheza M. El-Deeb   +3 more
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Fuzzy Differential Superordination

S.S. Miller and P.T. Mocanu in (Miller & Mocanu, 2003) the notion of differential superordination as a dualconcept of differential subordination (Miller & Mocanu, 2000) .
Hussain, Khudair O., Atshan, Waggas Galib   +1 more
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A class of superordination-preserving integral operators

, 2002
Let H(U) be the space of all analytic functions in the unit disk U. For the integral operator Aβ,γ: K → H(U), with K ⊂ H(U), defined by where β, γ ϵ C, we will determine sufficient conditions on g, β and γ such that the next implication holds: In ...
Bulboacǎ, Teodor
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