Results 31 to 40 of about 4,495,877 (113)

On a class of univalent functions

International 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

Systems for the management of respiratory disease in primary care - an international series: United Kingdom [PDF]

, 2010
INTRODUCTION: The UK National Health Service (NHS) is essentially publicly funded through general taxation. Challenges facing the NHS include the rise in prevalence of long-term conditions and financial pressures.
Allison Worth, Mark Levy, Worth, Allison, Levy, Mark L., Fletcher, Monica, Pinnock, Hilary, Aziz Sheikh, Monica Fletcher, Hilary Pinnock, Pinnock, Hilary; id_orcid, Hoskins, Gaylor, Levy, Mark, Gaylor Hoskins, Sheikh, Aziz, Levy, Mark L   +14 more
core   +1 more source

Coefficient Bounds and Fekete–Szegö Inequalities for a New Family of Bi‐Univalent Functions Associated With Horadam Polynomial

Journal of Mathematics, Volume 2026, Issue 1, 2026.
We define in this paper a new class of normalized bi‐univalent functions through Horadam polynomials. The main aim of this paper is to provide sharp estimates for the second and third Taylor–Maclaurin coefficients of functions in this new class. We also obtain the Fekete–Szegö inequality for these functions.
Musthafa Ibrahim, Jihad Younis, Ali N. A. Koam, Mohammad Uzair Shah, Smritijit Sen   +4 more
wiley   +1 more source

Univalence of certain integral operators

International 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

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

, 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.
Sümer Eker, S., Özlem Güney, H., Owa, Shigeyoshi   +2 more
core  

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

Veterinary 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, Emmanuel Bensignor, Hélène Dropsy, Odile Crosaz, Louis Humeau, Justine Cheval, Vanessa Demontant, Melissa N. Debi, Oscar Fantini, Hélène Dal, Jacques Guillot, Noelle Cochet Faivre   +11 more
wiley   +1 more source

Classes of convex functions

International 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, B. Adolf Stephen, K. G. Subramanian, Herb Silverman   +3 more
wiley   +1 more source

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

Journal 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, Maslina Darus, Rabha W. Ibrahim, Samuel Nicolay   +3 more
wiley   +1 more source

On certain sufficient conditions for starlikeness

International Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 8, Page 521-527, 2000., 2000
We consider certain properties of f(z)f″(z)/f′2(z) as a sufficient condition for starlikeness.
Nikola Tuneski
wiley   +1 more source

Bi‐Starlike Function of Complex Order Involving Rabotnov Function Associated With Telephone Numbers

Journal of Mathematics, Volume 2025, Issue 1, 2025.
Telephone numbers defined through the recurrence relation Qn=Qn−1+n−1Qn−2 for n ≥ 2, with initial values of Q0=Q1=1. The study of such numbers has led to the establishment of various classes of analytic functions associated with them. In this paper, we establish two new subclasses of bi‐convex and bi‐starlike functions of complex order in the open unit
Sa’ud Al-Sa’di, Kaliappan Vijaya, Gangadharan Murugusundaramoorthy, Ming-Sheng Liu   +3 more
wiley   +1 more source