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Initial Coefficient Bounds for interesting Subclasses of Meromorphic and and Bi-Univalent Functions [PDF]

open access: yesJournal of Mahani Mathematical Research, 2022
In this paper, we investigate an interesting subclass of univalent functions. Also, we introduce a new subclass of meromorphic bi-univalent functions. We obtain the estimates on the initial Taylor-Maclurin Coefficients for functions in the interesting ...
Hormoz Rahmatan   +2 more
doaj   +1 more source

Bicategories in univalent foundations [PDF]

open access: yesMathematical Structures in Computer Science, 2021
AbstractWe develop bicategory theory in univalent foundations. Guided by the notion of univalence for (1-)categories studied by Ahrens, Kapulkin, and Shulman, we define and study univalent bicategories. To construct examples of univalent bicategories in a modular fashion, we develop displayed bicategories, an analog of displayed 1-categories introduced
Benedikt Ahrens   +4 more
openaire   +11 more sources

Univalency of Certain Transform of Univalent Functions

open access: yesProceedings of the Bulgarian Academy of Sciences, 2023
We consider univalency problem in the unit disc $$\mathbb{D}$$ of the function \[g(z)=\frac{(z/f(z))-1}{-a_{2}}, \] where $$f$$ belongs to some classes of univalent functions in $$\mathbb{D}$$ and $$a_{2}=\frac{f''(0)}{2}\neq 0$$.
Obradović, Milutin, Tuneski, Nikola
openaire   +3 more sources

Partial sums and inclusion relations for analytic functions involving (p, q)-differential operator

open access: yesOpen Mathematics, 2021
Let fk(z)=z+∑n=2kanzn{f}_{k}\left(z)=z+{\sum }_{n=2}^{k}{a}_{n}{z}^{n} be the sequence of partial sums of the analytic function f(z)=z+∑n=2∞anznf\left(z)=z+{\sum }_{n=2}^{\infty }{a}_{n}{z}^{n}.
Tang Huo   +3 more
doaj   +1 more source

Univalence Criteria for Locally Univalent Analytic Functions

open access: yesUkrainian Mathematical Journal, 2023
UDC 517.5 Suppose that  p ( z ) = 1 + z ϕ ' ' ( z ) / ϕ ' ( z ) , where   ϕ ( z ) is a locally univalent analytic function in the unit disk D   with ϕ ( 0 ) = ϕ ' ( 1 ) - 1 = 0.   We establish the lower and upper bounds for the best constants σ 0
Hu, Zhenyong   +2 more
openaire   +1 more source

Certain Properties of Harmonic Functions Defined by a Second-Order Differential Inequality

open access: yesMathematics, 2023
The Theory of Complex Functions has been studied by many scientists and its application area has become a very wide subject. Harmonic functions play a crucial role in various fields of mathematics, physics, engineering, and other scientific disciplines ...
Daniel Breaz   +4 more
doaj   +1 more source

Univalent polymorphism [PDF]

open access: yesAnnals of Pure and Applied Logic, 2020
Corrected typos, updated references and added a section on Church's ...
openaire   +3 more sources

On a New Class of Bi-Close-to-Convex Functions with Bounded Boundary Rotation

open access: yesMathematics, 2023
In the current article, we introduce a new class of bi-close-to-convex functions with bounded boundary rotation. For this new class, the authors obtain the first three initial coefficient bounds of the newly defined bi-close-to-convex functions with ...
Daniel Breaz   +3 more
doaj   +1 more source

NEIGHBOURHOODS OF UNIVALENT FUNCTIONS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2010
AbstractThe main result shows that a small perturbation of a univalent function is again a univalent function, hence a univalent function has a neighbourhood consisting entirely of univalent functions. For the particular choice of a linear function in the hypothesis of the main theorem, we obtain a corollary which is equivalent to the classical Noshiro–
Pascu, Mihai N., Pascu, Nicolae R.
openaire   +2 more sources

On some geometric results for generalized k-Bessel functions

open access: yesDemonstratio Mathematica, 2023
The main aim of this article is to present some novel geometric properties for three distinct normalizations of the generalized kk-Bessel functions, such as the radii of uniform convexity and of α\alpha -convexity.
Toklu Evrim
doaj   +1 more source

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