Results 101 to 110 of about 13,123 (205)

Univalent functions and the Riemann mapping theorem

, 1976
A proof of the Riemann mapping theorem is given that depends on variational formulas for univalent functions. The method of proof can be used to simplify the derivation of the ordinary differential equation for extremal univalent functions given by ...
P. R. Garabedian
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On α-Pseudo Spiralike Functions Associated with Exponential Pareto Distribution (EPD) and Libera Integral Operator

Mathematics
The present study aims at investigating some characterizations of a new subclass Gα(μ,τ) and obtaining the bounds on the first two Taylor–Maclaurin coefficients for functions belonging to the newly introduced subclass.
Jamiu Olusegun Hamzat, Matthew Olanrewaju Oluwayemi, Abiodun Tinuoye Oladipo, Alina Alb Lupas   +3 more
doaj   +1 more source

Univalence and Ontic Structuralism

Foundations of Physics
AbstractThe persistent challenge of formulating ontic structuralism in a rigorous manner, which prioritizes structures over the entities they contain, calls for a transformation of traditional logical frameworks. I argue that Univalent Foundations (UF), which feature the axiom that all isomorphic structures are identical, offer such a foundation and ...
openaire   +3 more sources

Generalized Salagean-type harmonic univalent functions

, 2012
The main purpose of this paper is to introduce a generalization of modified Salagean operator for harmonic univalent functions. We define a new subclass of complex-valued harmonic univalent functions by using this operator, and we investigate necessary ...
Yalçın, Sibel, Yaşar, Elif
core  

Asymptotic tracts of locally univalent functions

, 2002
Several results are proved which are related to an old problem of G.R. MacLane, namely, whether functions in the class $\mathcal{A}$ that are locally univalent can have arc tracts.
Barth, Karl F., Rippon, Philip J.
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Univalent approximation by Fourier series of step functions [PDF]

We prove that univalent harmonic mappings can be approximated by univalent Fourier series of step ...
Weitsman, Allen
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Concave univalent functions

, 2019
Bu tez dört bölümden oluşmaktadır. Tezin amacı konkav yalınkat fonksiyonları detaylıca incelemek ve yeni sınıflar keşfetmektir. Birinci bölümde; tezin ilerleyen kısımlarında kullanılacak olan bazı temel tanımlar ve teoremler verildi.
Bayram, Hasan
core  

Certain subclass of alpha-convex bi-univalent functions defined using $q$-derivative operator

summary:The present investigation deals with a new subclass of alpha-convex bi-univalent functions in the unit disc $E=\left\rbrace z\colon \mid z \mid
Singh, Gurcharanjit, Singh, Gagandeep
core   +1 more source

Hadamard Product of Certain Harmonic Univalent Meromorphic Functions [PDF]

In this paper the authors extended certain results concerning the Hadamard product for two classes related to starlikeand convex harmonic univalent meromorphic functions, results for each class are obtained.
Frasin, B. A., El-Ashwah, R. M.
core   +1 more source

Approximation and geometric properties of some complex Bernstein-Stancu polynomials in compact disks

Journal of Numerical Analysis and Approximation Theory, 2007
In this paper, the order of simultaneous approximation, convergence results of the iterates and shape preserving properties, for complex Bernstein-Stancu polynomials (depending on one parameter) attached to analytic functions on compact disks are ...
Sorin G. Gal
doaj