Results 11 to 20 of about 106 (104)

Applications of differential subordination and superordination theorems to fluid mechanics involving a fractional higher-order integral operator

Alexandria Engineering Journal, 2021
The paper aims to study differential subordination and superordination preserving properties for certain analytic multivalent functions within the open unit disk related to a novel generalized fractional derivative operator for higher-order derivatives ...
J. Morais, H.M. Zayed
doaj   +1 more source

Fekete-Szegő inequality of bi-starlike and bi-convex functions of order b associated with symmetric q-derivative in conic domains

, 2022
In this paper, two new subclasses of bi-univalent functions related to conic domains are defined by making use of symmetric q-differential operator.
RAYAPROLU, Bharavi Sharma, KALIKOTA, Rajya Laxmi, MAGESH, Nanjundan   +2 more
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Estimate of third Hankel determinant for a subfamily of analytic functions

Annals of the West University of Timisoara: Mathematics and Computer Science, 2023
In this article, our aim is to study analytic functions related with Salagean operator and associated with the right half of the lemniscate of Bernoulli. We find the estimates of the third Hankel determinant for new family of analytic functions.
Shah Syed Ghoos Ali, Hussain Saqib, Lateef Shahid, Sakar F. Müge, Darus Maslina   +4 more
doaj   +1 more source

Fekete-Szegö functional for a class of non-Bazilevic functions related to quasi-subordination

Demonstratio Mathematica, 2023
In this article, we study the Fekete-Szegö functional associated with a new class of analytic functions related to the class of bounded turning by using the principle of quasi-subordination.
Shah Syed Ghoos Ali, Al-Sa’di Sa’ud, Hussain Saqib, Tasleem Asifa, Rasheed Akhter, Cheema Imran Zulfiqar, Darus Maslina   +6 more
doaj   +1 more source

New subclasses of bi-univalent functions connected with a q-analogue of convolution based upon the Legendre polynomials

, 2023
In this paper, we introduce new subclasses of analytic and bi-univalent functions connected with a q-analogue of convolution by using the Legendre poly- nomials.
EL-MATARY, Bassant M., EL-DEEB, Sheza M.
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Extreme points and support points of conformal mappings

Open Mathematics, 2019
There are three types of results in this paper. The first, extending a representation theorem on a conformal mapping that omits two values of equal modulus. This was due to Brickman and Wilken.
Peretz Ronen
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Coefficient Inequalities using Lucas Polynomials

, 2021
The aim of this paper is to apply Lucas polynomial, in order to obtain the initial coefficients on and  belonging to the new subclass   of analytic, univalent and Sakaguchi functions as defined in the open unit disc .
et. al., P. Lokesh,
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An upper bound of the Hankel determinant of third order for the inverse of reciprocal of Bounded turning functions

, 2023
The objective of this paper is to obtain an upper bound of the third order Hankel determinant for the inverse of the function f, when f belongs to the reciprocal of bounded turning functions with new approach.
VAMSHEE KRISHNA, Deekonda, DASUMAHANTHI, Shalini   +1 more
core   +1 more source

Coefficient estimates for a subclass of analytic functions by Srivastava-Attiya operator

, 2022
In this paper, we investigate bounds of the coefficients for subclass of analytic and bi-univalent functions. The results presented in this paper would generalize and improve some recent works and other authors. Mathematics Subject Classification (2010):
JAFARI, Mostafa, ANALOUEI ADEGANI, Ebrahim, MOTAMEDNEZAD, Ahmad   +2 more
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Coefficient inequalities for a subclass of Bazilevič functions

Demonstratio Mathematica, 2020
Let f be analytic in D={z:|z| 
Fitri Sa’adatul, Marjono, Thomas Derek K., Wibowo Ratno Bagus Edy   +3 more
doaj   +1 more source