Results 91 to 100 of about 201 (176)

On quasiconformal extension of harmonic mappings with nonzero pole

open access: yesComptes Rendus. Mathématique
Let $\Sigma _H^k(p)$ be the class of sense-preserving univalent harmonic mappings defined on the open unit disk $\mathbb{D}$ of the complex plane with a simple pole at $z=p \in (0,1)$ that have $k$-quasiconformal extensions ($0\le ...
Bhowmik, Bappaditya, Satpati, Goutam
doaj   +1 more source

Harmonic univalent functions

open access: yesAnnales Academiae Scientiarum Fennicae Series A I Mathematica, 1984
Clunie, J., Sheil-Small, T.
openaire   +3 more sources

On Certain Class of Harmonic Univalent Functions

open access: yesJournal of Applied Computer Science & Mathematics, 2012
A complex-valued functions that are univalent and sense preserving in the unit disk U can be written in the form f(z)= h(z)+ g(z), where U(z) and g(z) are analytic in. We will introduced the operator Dn which defined by convolution involving the polylogarithms functions.
Maslina DARUS, Nasser AL KASBI
openaire   +1 more source

Unified representation of a certain class of harmonic univalent functions defined by Dziok-Srivastava operator

open access: yesLe Matematiche, 2014
In this paper, we investigate several properties of the harmonic class defined by the modified Dziok-Sirvastava operator, obtain distortion theorem, extreme points, convolution condition, convex combinations and integral operator for this class.
M. K. Aouf   +2 more
doaj  

A new class of Salagean-type harmonic univalent functions

open access: yesApplied Mathematics Letters, 2005
Let harmonic functions \(f\) in the unit disk \(U\) be given by \[ f(z)=h(z)+\overline{g(z)}=z+\sum_{k=2}^{\infty}a_kz^k+\overline{\sum_{k=1}^{\infty}b_kz^k}, \] \(| b_1| \alpha,\;\;\;z\in U, \] where \[ D^mf(z)=z+\sum_{k=2}^{\infty}k^ma_kz^k+(-1)^m\overline{\sum_{k=1}^{\infty}k^mb_kz^k}. \] The subclass \(\overline S_H(m,n;\alpha)\) consists of \(f=h+\
openaire   +2 more sources

Subclass of harmonic starlike functions associated with salagean derivative

open access: yesLe Matematiche, 2014
The purpose of the present paper is to establish some results involving coefficient conditions, distortion bounds, extreme points, convolution, and convex combinations for a new class of harmonic univalent functions in the open unit disc \ associated ...
H. E. Darwish   +2 more
doaj  

Unconstrained Optimization of Univalent Harmonic Functions

open access: yesDiyala Journal for Pure Science, 2022
Wadhah Abdulelah Hussein   +1 more
openaire   +1 more source

On a subclass of harmonic univalent functions

open access: yesJournal of Physics: Conference Series, 2018
R Bharavi Sharma, B Ravindar
openaire   +1 more source

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