Results 21 to 30 of about 496 (69)

Radii of Starlikeness Associated with the Lemniscate of Bernoulli and the Left-Half Plane

open access: yes, 2011
A normalized analytic function f defined on the open unit disk in the complex plane is in the class SL if zf'(z)/f(z) lies in the region bounded by the right-half of the lemniscate of Bernoulli given by |w^2 - 1| < 1. In the present investigation, the SL-
Ali, Rosihan M.   +2 more
core   +1 more source

On a class of univalent functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 12, Page 855-857, 2000., 2000
We consider the class of univalent functions f(z) = z + a3z3 + a4z4 + ⋯ analytic in the unit disc and satisfying |(z2f′(z)/f2(z)) − 1 | < 1, and show that such functions are starlike if they satisfy |(z2f′(z)/f2(z))−1|<(1/2).
Vikramaditya Singh
wiley   +1 more source

Univalence of certain integral operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 10, Page 697-701, 2000., 2000
We study some integral operators and determine conditions for the univalence of these integral operators.
Virgil Pescar, Shigeyoshi Owa
wiley   +1 more source

New Coefficient Conditions for Functions Starlike with Respect to Symmetric Points [PDF]

open access: yes, 2010
2000 Mathematics Subject Classification: Primary 30C45, secondary 30C80.We consider some familiar subclasses of functions starlike with respect to symmetric points and obtain sufficient conditions for these classes in terms of their Taylor coefficient ...
Aghalary, R., Ebadian, A.
core  

Second Hankel determinant for bi-starlike and bi-convex functions of order \b{eta}

open access: yes, 2015
In the present investigation the authors obtain upper bounds for the second Hankel determinant of the classes bi-starlike and bi-convex functions of order beta.Comment: 8 pages, submitted to a ...
Deniz, Erhan   +2 more
core   +1 more source

Effect of a ceruminolytic ear cleaner on clinical, microbiological and ear canal microbiome evolution in canine erythemato‐ceruminous otitis externa associated with proliferation of Malassezia yeasts

open access: yesVeterinary Dermatology, Volume 36, Issue 5, Page 668-678, October 2025.
Background – Erythemato‐ceruminous otitis externa (ECOE) is commonly associated with Malassezia spp. and microbial imbalance. Hypothesis/Objective – To assess the clinical performance of an ear cleaner in dogs suffering from ECOE associated with Malassezia spp. overgrowth and to measure its impact on the microbiota. Conclusions and Clinical Relevance –
Amaury Briand   +11 more
wiley   +1 more source

Classes of convex functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 12, Page 819-825, 2000., 2000
We investigate a family that connects various subclasses of functions convex in the unit disk. We also look at generalized sequences for this family.
Thomas Rosy   +3 more
wiley   +1 more source

On Integral Means for Fractional Calculus Operators of Multivalent Functions [PDF]

open access: yes, 2006
2000 Mathematics Subject Classification: Primary 30C45, Secondary 26A33, 30C80Integral means inequalities are obtained for the fractional derivatives and the fractional integrals of multivalent functions.
Owa, Shigeyoshi   +2 more
core  

Prescribing the Preschwarzian in several complex variables

open access: yes, 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
core   +1 more source

Hankel and Toeplitz Determinants for q‐Starlike Functions Involving a q‐Analog Integral Operator and q‐Exponential Function

open access: yesJournal of Function Spaces, Volume 2025, Issue 1, 2025.
This article investigates the upper bounds of the second Hankel and Toeplitz determinants for a family of q‐starlike functions defined by a q‐analog integral operator, which is a more general form of the q‐Srivastava‐Attiya operator, and the q‐exponential function eq(z).
Sarem H. Hadi   +3 more
wiley   +1 more source

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