Results 71 to 80 of about 5,950,409 (217)

Starlike functions of complex order involving q-hypergeometric functions with fixed point

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2014
Recently Kanas and Ronning introduced the classes of starlike and convex functions, which are normalized with f(ksi)=f'(ksi)-1=0, ksi (|ksi|=d) is a fixed point in the open disc U ={z C:|z| 1}.
Kaliappan Vijaya   +2 more
doaj  

On a linear combination of q-starlike and q-convex [PDF]

open access: yesEuropean Journal of Mathematics and Applications
This investigation is about a set of analytic-univalent function-kind $$\mathfrak{f}(z)=z+\sum\limits_{j\geqq2}a_jz^j,\quad |z|
Ayotunde Olajide Lasode   +1 more
doaj   +1 more source

Certain classes of starlike functions. [PDF]

open access: yesMichigan Mathematical Journal, 1985
The author introduces a one parameter family of starlike mappings in the unit disk by proving that if f(z) is analytic in \(| z| 0. \] The proof is based on an extended version of the author's lemma in Trans. Am. Math. Soc. 76, 254-274 (1954; Zbl 0057.311). Some applications are also given.
openaire   +2 more sources

Starlikeness of a generalized Bessel function [PDF]

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2018
15 ...
Ali, Rosihan M.   +2 more
openaire   +4 more sources

Persistent Conformal Geometry and Loewner Evolution

open access: yesJournal of Function Spaces, Volume 2026, Issue 1, 2026.
We introduce persistent conformal geometry, a framework connecting geometric function theory with topological data analysis. The method assigns to each normalized univalent mapping a scale‐dependent distortion field and studies the persistent homology of its sublevel‐set filtration. The resulting persistence diagrams record the appearance, interaction,
Isra Al-Shbeil   +5 more
wiley   +1 more source

Characterization of p-valent q-starlike functions through Hadamard product and Poisson distribution

open access: yesApplied Mathematics in Science and Engineering
This paper presents significant advancement in the study of multivalent functions by introducing three new subclasses of p-valent q-starlike functions, defined with respect to higher-order q-derivatives within the open unit disk of the complex plane ...
Muhammad Uzair Shah   +3 more
doaj   +1 more source

Geometric Properties of the Normalized Fractional Bessel-Maitland Function Associated with the Riemann–Liouville Fractional Derivative

open access: yesFractal and Fractional
In this paper, we introduce and investigate a normalized fractional Bessel–Maitland function generated through the Riemann–Liouville fractional derivative, thereby establishing a new connection between fractional calculus and geometric function theory ...
Javeria, Alina Alb Lupaş, Nazar Khan
doaj   +1 more source

Results Related to the Sharp Coefficients Bounds for Symmetric Convex Functions Connected With the Sigmoid Function

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
A challenging task in studying geometric function theory is determining the sharp estimates for coefficient‐related results that come up in the Taylor series of analytic univalent functions. In the current paper, we attempt to establish some estimates of results concerning coefficient inequalities for the class of convex functions with respect to ...
Isra Al-Shbeil   +7 more
wiley   +1 more source

Starlikeness associated with parabolic regions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
A parabolic starlike function f of order ρ in the unit disk is characterized by the fact that the quantity zf′(z)/f(z) lies in a given parabolic region in the right half-plane. Denote the class of such functions by PS∗(ρ).
Rosihan M. Ali
doaj   +1 more source

Weakly starlike meromorphic univalent functions. II

open access: yes, 1977
A function f ( z ) f(z) is said to be meromorphic weakly starlike if it has the form f ( z ) = − ρ z F ( Z ) /
Albert E. Livingston
core   +1 more source

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