Results 41 to 50 of about 13,123 (205)

On certain classes of close-to-convex functions

International Journal of Mathematics and Mathematical Sciences, 1993
A function f, analytic in the unit disk E and given by , f(z)=z+∑k=2∞anzk is said to be in the family Kn if and only if Dnf is close-to-convex, where Dnf=z(1−z)n+1∗f, n∈N0={0,1,2,…} and ∗ denotes the Hadamard product or convolution.
Khalida Inayat Noor
doaj   +1 more source

Certain subclasses of Spiral-like univalent functions related with Pascal distribution series

Moroccan Journal of Pure and Applied Analysis, 2021
The purpose of the present paper is to find the sufficient conditions for the subclasses of analytic functions associated with Pascal distribution to be in subclasses of spiral-like univalent functions and inclusion relations for such subclasses in the ...
Murugusundaramoorthy Gangadharan
doaj   +1 more source

Univalent completion [PDF]

, 2017
We show by elementary means that every Kan fibration in simplicial sets can be embedded in a univalent Kan ...
van den Berg, Benno, Ieke Moerdijk, Sub Algebra,Geometry&Mathem. Logic begr., Faculteit Betawetenschappen, Benno van den Berg, van Den Berg, B., Moerdijk, I., Moerdijk, Ieke, Fundamental mathematics   +8 more
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Faber Polynomial Coefficient Estimates of m-Fold Symmetric Bi-Univalent Functions with Bounded Boundary Rotation

Mathematics
In the current article, we introduce several new subclasses of m-fold symmetric analytic and bi-univalent functions associated with bounded boundary and bounded radius rotation within the open unit disk D.
Anandan Murugan, Srikandan Sivasubramanian, Prathviraj Sharma, Gangadharan Murugusundaramoorthy   +3 more
doaj   +1 more source

Epimorphisms and acyclic types in univalent foundations [PDF]

We characterize the epimorphisms in homotopy type theory (HoTT) as the fiberwise acyclic maps and develop a type-theoretic treatment of acyclic maps and types in the context of synthetic homotopy theory as developed in univalent foundations.
Buchholtz, Ulrik, Rijke, Egbert, de Jong, Tom   +2 more
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Univalent functions having univalent derivatives [PDF]

Rocky Mountain Journal of Mathematics, 1986
Let T denote the family of functions \(f(z)=z-\sum^{\infty}_{n=2}a_ nz^ n\), \(a_ n\geq 0\), which are analytic and univalent in the unit disk \(\Delta =\{| z|
openaire   +2 more sources

One Criterion for Univalency [PDF]

Proceedings of the American Mathematical Society, 1989
In this note we give one criterion for the functions f ( z )
Nunokawa, Mamoru, Obradović, Milutin, Owa, Shigeyoshi   +2 more
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Product of univalent functions [PDF]

Mathematical and Computer Modelling, 2013
Abstract Let S denote the class of functions f analytic and univalent in the unit disk | z | 1 normalized such that f ( 0 ) = 0 = f ′ ( 0 ) − 1 . In this article the authors discuss the radius of univalence of F ( z ) = g ( z ) h ( z ) / z when g and h belong ...
Milutin Obradovic, Saminathan Ponnusamy
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Harmonic univalent functions [PDF]

, 2009
Harmonik fonksiyonlar analitik olması gerekmeyen kompleks değerli fonksiyonlardır. Harmonik yalınkat fonksiyonlar teorisi ise kompleks analizin üzerinde en çok araştırma yapılan dallarından birisidir.
Duman - Yavuz, Emel
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Univalent harmonic mappings [PDF]

Communications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1996
Summary: A family of univalent harmonic functions is studied from the point of geometric function theory. This class consists of mappings of the open unit disk onto the entire complex plane except for two infinite slits along the real axis with a normalization at the origin.
Öztürk, Metin, Yamankaradeniz, Mümin
openaire   +4 more sources