Results 281 to 290 of about 14,928,699 (320)
Some of the next articles are maybe not open access.

Applications of multivalent prestarlike functions

Applied Mathematics and Computation, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jacek Dziok
exaly   +4 more sources

A Coefficient Estimate for Multivalent Functions

open access: yesProceedings of the American Mathematical Society, 1976
By making use of extreme point theory we obtain bounds on the coefficients of a class of functions, multivalent in the unit disk, closely related to the bounds conjectured by Goodman.
Hallenbeck, David J.   +1 more
openaire   +2 more sources

Certain classes of meromorphic multivalent functions [PDF]

open access: yesComputers and Mathematics With Applications, 2009
In this paper, we introduce and investigate two new classes of meromorphic multivalent functions. Such results as subordination properties, coefficient inequalities, convolution properties and integral representations are proved.
Zhi-Gang Wang
exaly   +2 more sources

Third‐order differential subordinations for multivalent functions in the theory of source‐sink dynamics

Mathematical methods in the applied sciences, 2021
We propose third‐order differential subordination results associated with new admissible classes of multivalent functions defined in the open unit disk on the complex plane.
J. Morais, H. Zayed, R. Srivastava
semanticscholar   +1 more source

A certain class of multivalent functions [PDF]

open access: yesApplied Mathematics Letters, 1997
The object of the present paper is to derive several properties of a certain class of multivalent functions in the open unit disk.
Owa, S., Nunokawa, M., Srivastava, H.M.
exaly   +2 more sources

Subclasses of meromorphically multivalent functions defined by a differential operator [PDF]

open access: yesComputers and Mathematics With Applications, 2011
In this paper we introduce and study two new subclasses Σλμmp(α,β) and Σλμmp+(α,β) of meromorphically multivalent functions which are defined by means of a new differential operator.
Halit Orhan, Erhan Deniz
exaly   +2 more sources

On neighborhoods and partial sums of certain meromorphic multivalent functions [PDF]

open access: yesApplied Mathematics Letters, 2011
The main purpose of the present paper is to derive some properties associated with the neighborhoods and partial sums of a certain class of meromorphic multivalent ...
Zhi-Gang Wang
exaly   +2 more sources

On Nonsmooth Multivalent Guiding Functions

Differential Equations, 2003
The method of guiding functions developed by Krasnosel'skii, Perov, Bobylev, and others is one of the most efficient tools for establishing the existence of periodic oscillations. In the framework of this method, the guiding potentials are usually assumed to be continuously differentiable, which is restrictive for application in many cases.
Kornev, S. V., Obukhovskii, V. V.
openaire   +2 more sources

New subclasses of meromorphic multivalent functions associated with a differential operator

, 2019
In this paper, we define and investigate a new subclass for higher _ order derivatives of meromorphic multivalent functions which are associated with a differential operator we obtained many geometric properties sharp results including coefficient ...
Reem O. Rasheed, K. Jassim
semanticscholar   +1 more source

Multivalent Functions

1994
The class of multivalent functions is an important one in complex analysis. They occur for example in the proof of De Branges' theorem which, in 1985, settled the long-standing Bieberbach conjecture. The second edition of Professor Hayman's celebrated book contains a full and self-contained proof of this result, with a chapter devoted to it.
openaire   +1 more source

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