Results 81 to 90 of about 3,606 (203)
A New Method for Estimating General Coefficients to Classes of Bi‐univalent Functions
Journal of Function Spaces, Volume 2024, Issue 1, 2024.This study establishes a new method to investigate bounds of |ak|; (k ≥ n), for certain general classes of bi‐univalent functions. The results include a number of improvements and generalizations for well‐known estimations. We also discuss bounds of nan2−a21n− and consider several corollaries, remarks, and consequences of the results presented in this ...
Oqlah Al-Refai +4 more
wiley +1 more source
ZIP4 is required for normal progression of synapsis and for over 95% of crossovers in wheat meiosis. [PDF]
Front Plant Sci, 2023 Draeger TN +6 more
europepmc +2 more sources
Univalence of a New General Integral Operator Associated with the q-Hypergeometric Function
International Journal of Mathematics and Mathematical Sciences, 2013 Motivated by the familiar q-hypergeometric functions, we introduce a new family of integral operators and obtain new sufficient conditions of univalence criteria. Several corollaries and consequences of the main results are also pointed out.
Huda Aldweby, Maslina Darus
doaj +1 more source
Coefficients of univalent harmonic mappings
, 2017 Let $\mathcal{S}_H^0$ denote the class of all functions $f(z)=h(z)+\overline{g(z)}=z+\sum^\infty_{n=2} a_nz^n +\overline{\sum^\infty_{n=2} b_nz^n}$ that are sense-preserving, harmonic and univalent in the open unit disk $|z|
Kaliraj, Anbareeswaran Sairam +2 more
core +1 more source
On Univalence Criteria for a General Integral Operator
Journal of Function Spaces and Applications, 2012 We consider a new general integral operator, and we give sufficient conditions for the univalence of this integral operator in the open unit disk of the complex plane. Several consequences of the main results are also shown.
Vasile Marius Macarie, Daniel Breaz
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Prescribing the Preschwarzian in several complex variables
, 2010 We solve the several complex variables preSchwarzian operator equation $[Df(z)]^{-1}D^2f(z)=A(z)$, $z\in \C^n$, where $A(z)$ is a bilinear operator and $f$ is a $\C^n$ valued locally biholomorphic function on a domain in $\C^n$.
Rodrigo, Hernández
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Some criteria for two new integral operators [PDF]
Surveys in Mathematics and its Applications, 2012 Using the Hadamard product, we define two new integral operators. The main object of the present paper is to discuss some univalence conditions for these operators. Several corollaries of the main results are also considered.
Laura Stanciu, Daniel Breaz
doaj
Properties of a new integral operator
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016 In this paper, we derive sufficient conditions for the univalence, star- likeness, convexity and some other properties in the class N (ρ) ; for a new integral operator defined on the space of normalized analytic functions in the open unit disk.
Bucur Roberta +2 more
doaj +1 more source
ON PROBLEMS OF UNIVALENCE FOR THE CLASS TR(1/2)
Проблемы анализа, 2007 In this paper we discuss the class TR(1/2) consisted of typically real functions given by the integral formula. The problems of local univalence, univalence, convexity in the direction of real and imaginary axes are examined.
SOBCZAK-KNEC M., ZAPRAWA P.
doaj
On General Integral Operator of Analytic Functions
Abstract and Applied Analysis, 2013 Let be the integral operator defined by , where each of the functions and is, respectively, analytic functions and functions with positive real part defined in the open unit disk for all .
Nasser Alkasbi, Maslina Darus
doaj +1 more source