Results 61 to 70 of about 16,584 (269)

Properties of a new integral operator

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this paper, we derive sufficient conditions for the univalence, star- likeness, convexity and some other properties in the class N (ρ) ; for a new integral operator defined on the space of normalized analytic functions in the open unit disk.
Bucur Roberta   +2 more
doaj   +1 more source

On q-Starlike Functions Defined by q-Ruscheweyh Differential Operator in Symmetric Conic Domain

open access: yesSymmetry, 2021
Motivated by q-analogue theory and symmetric conic domain, we study here the q-version of the Ruscheweyh differential operator by applying it to the starlike functions which are related with the symmetric conic domain.
Saira Zainab   +5 more
semanticscholar   +1 more source

Close-to-convexity of quasihyperbolic and $j$-metric balls

open access: yes, 2010
We will consider close-to-convexity of the metric balls defined by the quasihyperbolic metric and the $j$-metric. We will show that the $j$-metric balls with small radii are close-to-convex in general subdomains of $\Rn$ and the quasihyperbolic balls ...
Klén, Riku
core   +1 more source

Some General Classes of q-Starlike Functions Associated with the Janowski Functions

open access: yesSymmetry, 2019
By making use of the concept of basic (or q-) calculus, various families of q-extensions of starlike functions of order α in the open unit disk U were introduced and studied from many different viewpoints and perspectives.
H. Srivastava   +4 more
semanticscholar   +1 more source

Certain Constraints for Functions Provided by Touchard Polynomials

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
Since finding solutions to integral equations is usually challenging analytically, approximate methods are often required, one of which is based on Touchard polynomials. This paper examines the necessary constraints for the functions Ϝετς,Πε,τ,ςℏ, and the integral operator Lετς, defined by Touchard polynomials, to be in the comprehensive subclass ∁η(q3,
Tariq Al-Hawary   +3 more
wiley   +1 more source

A generalization of starlike functions of order alpha [PDF]

open access: yes, 2015
For every $q\in(0,1)$ and $0\le ...
Agrawal, Sarita, Sahoo, Swadesh K.
core  

Geometric properties of the shifted hypergeometric functions

open access: yes, 2017
We will provide sufficient conditions for the shifted hypergeometric function $z_2F_1(a,b;c;z)$ to be a member of a specific subclass of starlike functions in terms of the complex parameters $a,b$ and $c.$ For example, we study starlikeness of order ...
Sugawa, Toshiyuki, Wang, Li-Mei
core   +1 more source

A Subclass of Multivalent Janowski Type q-Starlike Functions and Its Consequences

open access: yesSymmetry, 2021
In this article, by utilizing the theory of quantum (or q-) calculus, we define a new subclass of analytic and multivalent (or p-valent) functions class Ap, where class Ap is invariant (or symmetric) under rotations.
Qiuxia Hu   +6 more
semanticscholar   +1 more source

Inclusion Theorems of Certain Integral Transform Related to Normalized Hypergeometric Functions and Generalized Bessel Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
This study explores the geometric properties of normalized Gaussian hypergeometric functions in a certain subclass of analytic functions. This work investigates the inclusion properties of integral operators associated with generalized Bessel functions of the first kind.
Manas Kumar Giri   +2 more
wiley   +1 more source

On subordination for certain subclass of analytic functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
In the present paper the class Pn[α,M] consisting of functions f(z)=z+∑k=n+1∞akzz(n≥1), which are analytic in the unit disc E={z:|z|
Liu Jinlin
doaj   +1 more source

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