Results 21 to 30 of about 686,674 (292)

Applications of a certain q-integral operator to the subclasses of analytic and bi-univalent functions

open access: yesAIMS Mathematics, 2021
In the present investigation, our aim is to define a generalized subclass of analytic and bi-univalent functions associated with a certain $q$-integral operator in the open unit disk $\mathbb{U}$.
Bilal Khan   +5 more
doaj   +1 more source

Coefficients Inequalities for the Bi-Univalent Functions Related to q-Babalola Convolution Operator

open access: yesFractal and Fractional, 2023
This article defines a new operator called the q-Babalola convolution operator by using quantum calculus and the convolution of normalized analytic functions in the open unit disk.
Isra Al-shbeil   +2 more
doaj   +1 more source

Coefficients and Fekete–Szegö Functional Estimations of Bi-Univalent Subclasses Based on Gegenbauer Polynomials

open access: yesMathematics, 2023
Subclasses of analytic and bi-univalent functions have been extensively improved and utilized for estimating the Taylor–Maclaurin coefficients and the Fekete–Szegö functional.
Abdulmtalb Hussen, Abdelbaset Zeyani
doaj   +1 more source

Spectral theory of the invariant Laplacian on the disk and the sphere – a complex analysis approach [PDF]

open access: yesCanadian Journal of Mathematics - Journal Canadien de Mathematiques, 2023
The central theme of this paper is the holomorphic spectral theory of the canonical Laplace operator of the complement of the “complexified unit circle” $\{(z,w) \in \widehat {{\mathbb C}}^2 \colon z \cdot w = 1\}$ .
Michael Heins   +2 more
semanticscholar   +1 more source

New Class of Close-to-Convex Harmonic Functions Defined by a Fourth-Order Differential Inequality

open access: yesJournal of Mathematics, 2022
In the recent past, various new subclasses of normalized harmonic functions have been defined in open unit disk U which satisfy second-order and third-order differential inequalities.
Mohammad Faisal Khan   +4 more
doaj   +1 more source

Fekete Szego coefficient for the Janowski \alpha-spirallike functions in open unit disk [PDF]

open access: yesInternational Journal of Mathematical Analysis, 2014
The aim of this paper is to gives sharp bound of the Fekete Szego coefficient functional for the Janowski α-Spirallike functions associated with the k th root transformation.
Annai Teresa   +3 more
openaire   +1 more source

On Newman and Littlewood polynomials with a prescribed number of zeros inside the unit disk [PDF]

open access: yesMathematics of Computation, 2019
We study $\{0, 1\}$ and $\{-1, 1\}$ polynomials $f(z)$, called Newman and Littlewood polynomials, that have a prescribed number $N(f)$ of zeros in the open unit disk $\mathcal{D} = \{z \in \mathbb{C}: |z| 2$ on the unit circle $\partial \mathcal{D ...
K. Hare, Jonas Jankauskas
semanticscholar   +1 more source

QPTAS and Subexponential Algorithm for Maximum Clique on Disk Graphs [PDF]

open access: yes, 2018
A (unit) disk graph is the intersection graph of closed (unit) disks in the plane. Almost three decades ago, an elegant polynomial-time algorithm was found for Maximum Clique on unit disk graphs [Clark, Colbourn, Johnson; Discrete Mathematics '90]. Since
Bonnet, E.   +4 more
core   +6 more sources

Regular classes involving a generalized shift plus fractional Hornich integral operator

open access: yesBoletim da Sociedade Paranaense de Matemática, 2018
The Hornich space is the set of all locally univalent and analytic functions Á on the open unit disk such that argÁ0 is bounded. Here, we introduce a generalized integral operator in the open unit disk.
Rabha W Ibrahim
doaj   +1 more source

On a version of Trudinger-Moser inequality with M\"obius shift invariance [PDF]

open access: yes, 2009
The paper raises a question about the optimal critical nonlinearity for the Sobolev space in two dimensions, connected to loss of compactness, and discusses the pertinent concentration compactness framework. We study properties of the improved version of
Adimurthi, Tintarev, K.
core   +2 more sources

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