Results 11 to 20 of about 2,838,771 (87)

Bounds on third Hankel determinant for certain classes of analytic functions [PDF]

open access: yes, 2022
Mathematics Subject Classification (2010): 30C45 ...
MAHARANA , Sudhananda   +2 more
core  

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

open access: yes, 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   +2 more
core   +1 more source

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

open access: yes, 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.
core   +1 more source

Third Hankel determinant for reciprocal of bounded turning function has a positive real part of order alpha [PDF]

open access: yes, 2017
The objective of this paper is to obtain an upper bound to the third Hankel determinant denoted by |H3(1)| for certain subclass of univalent functions, using Toeplitz determinants.
RANI, Nekkanti, VENKATESWARLU, Bolineni
core   +1 more source

Coefficient bounds for new subclasses of analytic and m-fold symmetric bi-univalent functions

open access: yes, 2021
In the present paper, we introduce and study two new subclasses of analytic and m-fold symmetric bi-univalent functions defined in the open unit disk U . Furthermore, for functions in each of the subclasses introduced here, we obtain upper bounds for the
WANAS, Abbas Kareem   +1 more
core   +1 more source

Coefficient Inequalities using Lucas Polynomials

open access: yes, 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,
core   +1 more source

Remark on functions with all derivatives univalent

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 3, Issue 1, Page 193-196, 1980., 1980
An attractive conjecture is discounted for the class of normalized univalent functions whose derivatives are also univalent.
M. Lachance
wiley   +1 more source

An upper bound of the Hankel determinant of third order for the inverse of reciprocal of Bounded turning functions

open access: yes, 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   +1 more
core   +1 more source

Application of Ruscheweyh q-differential operator to analytic functions of reciprocal order

open access: yes, 2020
The core object of this paper is to define and study new class of analytic function using Ruscheweyh q-differential operator. We also investigate a number of useful properties such as inclusion relation, coefficient estimates, subordination result,for ...
KHAN, Imran   +2 more
core   +1 more source

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

open access: yes, 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   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy