Results 11 to 20 of about 7,296 (239)

Odd Starlike Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
The authors show that for normalized odd starlike functions f(z) \[ Re(f(z)/S_ n(z,f))>,\quad | z|
Singh, Ram, Puri, Sangita
openaire   +1 more source

Analytic Functions Related with Starlikeness [PDF]

open access: yesMathematical Problems in Engineering, 2021
The aim of present investigation is to study a new class of analytic function related with the Sokol-Nunokawa class. We derived relationships of this class with strongly starlike functions and obtained many interesting results.
Syed Ghoos Ali Shah   +5 more
openaire   +1 more source

Subclasses of Multivalent Meromorphic Functions with a Pole of Order p at the Origin

open access: yesMathematics, 2022
In this paper, we carry out a systematic study to discover the properties of a subclass of meromorphic starlike functions defined using the Mittag–Leffler three-parameter function.
Daniel Breaz   +2 more
doaj   +1 more source

Starlikness Associated with Cosine Hyperbolic Function

open access: yesMathematics, 2020
The main contribution of this article is to define a family of starlike functions associated with a cosine hyperbolic function. We investigate convolution conditions, integral preserving properties, and coefficient sufficiency criteria for this family ...
Abdullah Alotaibi   +3 more
doaj   +1 more source

The sharp bound of the third Hankel determinants for inverse of starlike functions with respect to symmetric points

open access: yesМатематичні Студії, 2022
We study the sharp bound for the third Hankel determinant for the inverse function $f$, when it belongs to of the class of starlike functions with respect to symmetric points.
B. Rath   +3 more
doaj   +1 more source

Briot–Bouquet Differential Subordinations for Analytic Functions Involving the Struve Function

open access: yesFractal and Fractional, 2022
We define a new class of exponential starlike functions constructed by a linear operator involving normalized form of the generalized Struve function. Making use of a technique of differential subordination introduced by Miller and Mocanu, we investigate
Asena Çetinkaya   +1 more
doaj   +1 more source

On the Study of Starlike Functions Associated with the Generalized Sine Hyperbolic Function

open access: yesMathematics, 2023
Geometric function theory, a subfield of complex analysis that examines the geometrical characteristics of analytic functions, has seen a sharp increase in research in recent years.
Baseer Gul   +5 more
doaj   +1 more source

Starlike functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1974
Let S ∗ [ α ] {\mathcal {S}^\ast }[\alpha ] denote the class of functions f ( z ) = z + ∑ n = 2 ∞
openaire   +1 more source

On Janowski Starlike Functions [PDF]

open access: yesJournal of Inequalities and Applications, 2007
Applying the fractional calculus to analytic functions \(f(z)\) defined on the open unit disc \(U\) with \(f(0)=0\) and \(f^\prime(0)=1\) [cf. \textit{W. Janowski}, Bull. Acad. Pol. Sci., Sér. Sci. Math. Astron. Phys. 21, 17--25 (1973; Zbl 0252.30021)], the authors introduce a new fractional operator \(D^\lambda f(z)\) and define a subclass of the ...
Çağlar, Mert   +4 more
openaire   +6 more sources

Starlike Meromorphic Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
In this paper we study meromorphic univalent functions which map the unit disk onto the exterior of a domain which is starlike with respect to some finite point different from the origin. We obtain bounds on the arc length, an integral representation, and bounds on the maximum modulus of starlike meromorphic functions.
openaire   +2 more sources

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