Results 81 to 90 of about 182 (132)

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

open access: yesMathematics
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

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

open access: yesJournal 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,
openaire   +2 more sources

Differential sandwich theorems for higher-order derivatives of p-valent functions involving a generalized differential operator

open access: yesLe 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   +2 more
doaj  

The Compressed Vocabulary of Microbial Life. [PDF]

open access: yesFront Microbiol, 2021
Caetano-Anollés G.
europepmc   +1 more source

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

open access: yesStudia 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.
openaire   +1 more source

Differential sandwich theorems of symmetric points associated with Dziok-Srivastava operator

open access: yesLe 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   +3 more
doaj  

Differential and fuzzy differential sandwich theorems involving quantum calculus operators

open access: yesJournal of Nigerian Society of Physical Sciences
The principle of subordination is useful in comparing two holomorphic functions when the range of one holomorphic function is a subset of the other and they comply at a single point.
I. R. Silviya, K. Muthunagai
doaj   +1 more source

On certain differential sandwich theorems involving a generalized Sǎlǎgean operator and Ruscheweyh operator

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
In the present paper we introduce sufficient conditions for subordination and superordination involving the operator DRλm,n$DR_\lambda ^{m,n} $ and also we obtain sandwich-type results.
Loriana Andrei
doaj   +1 more source

Subordination and Superordination on Schwarzian Derivatives

open access: yesJournal of Inequalities and Applications, 2009
Let the functions q1 be analytic and let q2 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 f are ...
N. Seenivasagan   +2 more
doaj   +1 more source

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

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