Results 21 to 30 of about 90,034,892 (319)

Coefficient Problems for Certain Close-to-Convex Functions [PDF]

open access: yesBulletin of the Iranian Mathematical Society, 2022
In this paper, bounds are established for the second Hankel determinant of logarithmic coefficients for normalised analytic functions satisfying certain differential inequality.
Mridula Mundalia, S. Kumar
semanticscholar   +1 more source

Some properties of certain close-to-convex harmonic mappings [PDF]

open access: yesAnalysis and Mathematical Physics, 2021
In this paper, we determine the sharp estimates for Toeplitz determinants of a subclass of close-to-convex harmonic mappings. Moreover, we obtain an improved version of Bohr’s inequalities for a subclass of close-to-convex harmonic mappings, whose ...
Xiao-Yuan Wang   +3 more
semanticscholar   +1 more source

Bohr–Rogosinski radius for a certain class of close-to-convex harmonic mappings

open access: yesCanadian mathematical bulletin, 2023
Let $ \mathcal {B} $ be the class of analytic functions $ f $ in the unit disk $ \mathbb {D}=\{z\in \mathbb {C} : |z|
M. Ahamed, V. Allu
semanticscholar   +1 more source

Applications of Beta Negative Binomial Distribution and Laguerre Polynomials on Ozaki Bi-Close-to-Convex Functions

open access: yesAxioms, 2022
In the present paper, due to beta negative binomial distribution series and Laguerre polynomials, we investigate a new family FΣ(δ,η,λ,θ;h) of normalized holomorphic and bi-univalent functions associated with Ozaki close-to-convex functions.
Isra Al-shbeil   +3 more
semanticscholar   +1 more source

On Janowski Close-to-Convex Functions Associated with Conic Regions [PDF]

open access: yesInternational Journal of Analysis and Applications, 2020
In this work, we introduce and investigate a class of analytic functions which is a subclass of close-to-convex functions of Janowski type and related to conic regions.
Afis Saliu, Khalida Inayat Noor
doaj   +1 more source

Faber Polynomial Coefficient Estimates for Janowski Type bi-Close-to-Convex and bi-Quasi-Convex Functions [PDF]

open access: yes, 2023
Motivated by the recent work on symmetric analytic functions by using the concept of Faber polynomials, this article introduces and studies two new subclasses of bi-close-to-convex and quasi-close-to-convex functions associated with Janowski functions ...
Qin Xin   +11 more
core   +1 more source

Faber polynomial coefficient estimates of bi-close-to-convex functions connected with the Borel distribution of the Mittag-Leffler type

open access: yesJournal of Nonlinear and Variational Analysis, 2021
By using the Borel distribution series of the Mittag-Leffler type, we introduce a new class of the bi-close-to-convex functions defined in the open unit disk.
H. Srivastava   +2 more
semanticscholar   +1 more source

New Criteria for Univalent‎, ‎Starlike‎, ‎Convex‎, ‎and Close-to-Convex Functions on the Unit Disk [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
In the present paper, we introduce and investigate three interesting superclasses SD, SD* and KD of analytic, normalized and univalent functions in the open unit disk D.
Mohammad Reza Yasamian   +2 more
doaj   +1 more source

Hankel, Toeplitz, and Hermitian-Toeplitz Determinants for Certain Close-to-convex Functions

open access: yes, 2022
Let f be analytic in $$\mathbb {D}=\{z\in \mathbb {C}:|z|
V. Allu, A. Lecko, D. Thomas
semanticscholar   +1 more source

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