Results 101 to 110 of about 517,230 (334)
Univalence and quasiconformal extension of an integral operator [PDF]
arXiv, 2016 In this paper we give some sufficient conditions of analyticity and univalence for functions defined by an integral operator. Next, we refine the result to a quasiconformal extension criterion with the help of the Becker's method. Further, new univalence criteria and the significant relationships with other results are given.
arxiv
AN EXTREMAL PROBLEM FOR UNIVALENT FUNCTIONS [PDF]
Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2010 Let S be the class of functions f(z)=z+a2z 2 …, f(0)=0, f′(0)=1 which are regular and univalent in the unit disk |z| x the equation φ′( x)=0 does not have real roots. Since S is a compact class, there exists x .
Miodrag IOVANOV
doaj
Univalent and Starlike Properties for Generalized Struve Function
International Journal of Mathematics and Mathematical Sciences, 2016 We derive conditions on the parameters p, b, and c so that the function zwp,b,c(z), where wp,b,c(z) is the normalized form of generalized Struve function, belongs to the class S1⁎(α). Also, some sufficient conditions for the function zwp,b,c(z), to be in
Aaisha Farzana Habibullah +2 more
doaj +1 more source
AQUA‐FINS: Advanced Quantitative Underwater Analysis by a Flexible Integrated Nitrate Sensor
Advanced Sensor Research, EarlyView.This work presents a flexible, integrated sensor array for real‐time monitoring of nitrate, pH, and temperature in aquaculture. The sensors exhibit high sensitivity and selectivity, while a regression model improves nitrate detection accuracy in dynamic conditions. Successful field deployment of the sensor array highlights its potential for maintaining
Shah Zayed Riam +6 more
wiley +1 more source
Steiner symmetrization and the initial coefficients of univalent functions [PDF]
arXiv, 2012 We study the behavior of the initial coefficients of univalent functions under the Steiner symmetrization, and give some applications to functions of class \Sigma.
arxiv
Kudriasov Type Univalence Criteria for Some Integral Operators
Abstract and Applied Analysis, 2013 We consider some integral operators defined by analytic functions in the open unit disk and derive new univalence criteria for these operators, using Kudriasov condition for a function to be univalent.
Virgil Pescar, Nicoleta Breaz
doaj +1 more source
Abstract and Applied Analysis, 2020 In this paper, we introduce new subclasses of the function class Σ of bi-univalent functions connected with a q-analogue of Bessel function and defined in the open unit disc.
Sheza M. El-Deeb
doaj +1 more source
On harmonic combination of univalent functions
Bulletin of the Belgian Mathematical Society - Simon Stevin, 2012 10 pages.
Obradović, M., Ponnusamy, S.
openaire +5 more sources
Advanced Sustainable Systems, EarlyView.Hydrogels made of chemically modified biopolymers are easy to prepare and cost‐effective, they have proven to be effective materials for the simultaneous removal of seven potentially toxic elements (PTEs) from ultrapure and real water samples. The cellulose‐based one seems the best for single treatments while the gelatine‐based one seems the most ...
Monica Rigoletto +6 more
wiley +1 more source
Bounds for the radii of univalence of some special functions [PDF]
Mathematical Inequalities and Applications 20(3) (2017) 825-843, 2016 Tight lower and upper bounds for the radius of univalence of some normalized Bessel, Struve and Lommel functions of the first kind are obtained via Euler-Rayleigh inequalities. It is shown also that the radius of univalence of the Struve functions is greater than the corresponding radius of univalence of Bessel functions. Moreover, by using the idea of
arxiv