Results 71 to 80 of about 3,137 (178)

Some Applications of Srivastava-Attiya Operator to p-Valent Starlike Functions

open access: yesJournal of Inequalities and Applications, 2010
We introduce and study some new subclasses of p-valent starlike, convex, close-to-convex, and quasi-convex functions defined by certain Srivastava-Attiya operator.
Elrifai EA, Darwish HE, Ahmed AR
doaj  

Coefficient estimates for some classes of functions associated with \(q\)-function theory

open access: yes, 2017
In this paper, for every $q\in(0,1)$, we obtain the Herglotz representation theorem and discuss the Bieberbach type problem for the class of $q$-convex functions of order $\alpha, 0\le ...
Agrawal, Sarita
core  

On a Subfamily of Analytic Functions Associated With q‐Sălăgean Operator

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this article, we study a new subfamily of analytic functions associated with q‐Janowski function using q‐Sălăgean operator. We explore certain properties of the functions belonging to this new class which include sufficient condition, inclusion results, and coefficient estimate bounds for Fekete–Szegö functional. Several consequences of main results
Ihtesham Gul   +6 more
wiley   +1 more source

Toeplitz Determinants for Inverse of Analytic Functions

open access: yesMathematics
Estimates bounds for Carathéodory functions in the complex domain are applied to demonstrate sharp limits for the inverse of analytic functions. Determining these values is considered a more difficult task compared to finding the values of analytic ...
Sarem H. Hadi   +4 more
doaj   +1 more source

Starlikeness and convexity results for hypergeometric functions

open access: yesComputers & Mathematics with Applications, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On Certain Improvements on Coefficient Bounds for a Subclass of Convex Functions Associated With Cosine Functions

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this article, we have studied the class Ccos of normalized analytic functions f satisfying 1 + zf″(z)/f′(z)≺cos(z). We present the improved coefficient bounds and the Hankel determinants of fourth order for functions lying in the class Ccos. We also extended the same results for the inverse function.
Umar Raza   +3 more
wiley   +1 more source

Study about inclusion relationships and integral preserving properties [PDF]

open access: yesSurveys in Mathematics and its Applications, 2012
The object of the present paper is to investigate a family of integral operators defined on the space of meromorphic functions. By making use of these novel integral operators, we introduce and investigate several new subclasses of starlike, convex ...
Imran Faisal, Maslina Darus
doaj  

Application of Differential Subordinations to the Arithmetic–Geometric Means by Using an Operator

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
This study investigates differential subordination involving arithmetic and geometric mean approaches associated with a previously introduced operator. While earlier studies considered cases where the dominant function was convex or linear, the present work extends these results by examining differential subordinations for specific classes of convex ...
Santosh Mandal   +5 more
wiley   +1 more source

Edge‐minimum saturated k‐planar drawings

open access: yesJournal of Graph Theory, Volume 106, Issue 4, Page 741-762, August 2024.
Abstract For a class D of drawings of loopless (multi‐)graphs in the plane, a drawing D ∈ D is saturated when the addition of any edge to D results in D ′ ∉ D—this is analogous to saturated graphs in a graph class as introduced by Turán and Erdős, Hajnal, and Moon.
Steven Chaplick   +4 more
wiley   +1 more source

On p-Valently Meromorphic-Strongly Starlike and Convex Functions

open access: yesInternational Journal of Analysis and Applications, 2016
In this paper, we obtain sufficient conditions for analytic function $f(z)$ in the punctured unit disk to be $p$-valently meromorphic-strongly starlike and $p$-valently meromorphic-strongly convex of order $\beta$ and type $\alpha$.
Rahim Kargar, Ali Ebadian, Janusz Sokol
doaj   +2 more sources

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