Results 71 to 80 of about 13,123 (205)

A Generalization on a Certain Class of Salagean-Type Harmonic Univalent Functions and Distortion Theorems for Fractional Calculus

open access: yes, 2015
[[abstract]]We define and investigate a new class of Salagean-type harmonic univalent functions. We obtain some properties of this subclass. Furthermore, we give the Hadamard product of several functions and some distortion theorems for fractional ...
Güney, H. Özlem, Owa, Shigeyoshi
core  

Univalent Enriched Categories and the Enriched Rezk Completion [PDF]

open access: yesLogical Methods in Computer Science
Enriched categories are categories whose sets of morphisms are enriched with extra structure. Such categories play a prominent role in the study of higher categories, homotopy theory, and the semantics of programming languages.
Niels van der Weide
doaj   +1 more source

Univalent functions

open access: yes, 2011
Bu tez beş bölümden oluşmaktadır. Birinci bölümde tezin amacı, kaynaklar veunivalent fonksiyonlar hakkında genel bilgiler verilmiştir. İkinci bölümde komplekstrigonometrik bağıntılar, kompleks türevler, kompleks integraller ile ilgili bilgilerverilmiştir.
Cihangiroğlu, Mine
core  

Bounds for the Second Hankel Determinant of a General Subclass of Bi-Univalent Functions [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
The Hankel determinant, which plays a significant role in the theory of univalent functions, is investigated here in the context of bi-univalent analytic functions.
Mohamed Illafe   +3 more
doaj   +1 more source

Univalent Functions with Univalent Derivatives III [PDF]

open access: yesIndiana University Mathematics Journal, 1969
S. M. Shah, S. Y. Trimble
openaire   +2 more sources

On a class of univalent functions

open access: yesApplied Mathematics Letters, 2012
AbstractLet A be the class of analytic functions in the unit disk D with the normalization f(0)=f′(0)−1=0. Denote by N the class of functions f∈A which satisfy the condition |−z3(zf(z))‴+f′(z)(zf(z))2−1|≤1,z∈D. We show that functions in N are univalent in D but not necessarily starlike.
Milutin Obradovic, Saminathan Ponnusamy
openaire   +2 more sources

Coefficient Estimates for New Subclasses of Bi-Univalent Functions with Bounded Boundary Rotation by Using Faber Polynomial Technique

open access: yesAxioms
In this article, the authors use the Faber polynomial expansions to find the general coefficient estimates for a few new subclasses of bi-univalent functions with bounded boundary rotation and bounded radius rotation.
Huo Tang   +2 more
doaj   +1 more source

Univalent functions with univalent sections [PDF]

open access: yes, 1998
Contains fulltext : 265336.pdf (Publisher’s version ) (Open Access)
openaire  

One Pointed Univalent Logharmonic Mappings [PDF]

open access: yes, 1996
A complete characterization of univalent logharmonic mappings from the exterior of the unit diskU, Δ ontoC\{1} is ...
Abdulhadi, Zayid, Hengartner, Walter
core   +1 more source

On the coefficients of R-univalent functions [PDF]

open access: yesDuke Mathematical Journal, 1955
(4) | an| < 41 di n, f(z) 5 d(I zI < 1). Because of d|I d 1/4, (4) is weaker than the Bieberbach conjecture but, as shown by the function f(z) =z(1 -Z)-2 =z+2z2+3z3+ (f(z)05-1/4), it would still be sharp. In the present note we shall show that the truth of Littlewood's conjecture (4) would follow from the proof of the asymptotic result (3).
openaire   +3 more sources

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