Properties of a Certain Class Related to q-Difference Operator

In this paper, using a analytic univalent functions of the form f(z)=z+∑_{k=2}^{∞}a_{k}z^{k}, that is defined in the open unit disk U={z:|z|<1}. We define a class of functions by using Aouf et al. [3] operator D_{q,λ}ⁿ and Jackson q- derivative in the open unit disk U which for different values of its parameters many special new classes can be obtained from it. For this class of functions, we obtained some of its properties such as coefficient estimates, neighborhood of function and the modified Hadamard product of two functions in it and also for function which its coefficients are the sum of the squares of the coefficients of two functions. Key results demonstrate the influence of the Aouf et al. [3] operator on the univalence, growth theorems and distortion properties for this class of functions. Also we obtained analogue results of these results for each of the subclass obtained from this class.

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Publication Details

Journal
Electronic Journal of Mathematical Analysis and Applications
Published
2025-01-01
DOI
https://doi.org/10.21608/ejmaa.2025.324563.1274
Primary Topic
Approximation Theory and Sequence Spaces
Type
article
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article

Properties of a Certain Class Related to q-Difference Operator

M. M. Tharwat, Amr Mostafa, Aya F. Elkhatib
Electronic Journal of Mathematical Analysis and Applications
Approximation Theory and Sequence Spaces
article

Properties of a Certain Class Related to q-Difference Operator

M. M. Tharwat, Amr Mostafa, Aya F. Elkhatib
article en

Abstract

In this paper, using a analytic univalent functions of the form f(z)=z+∑_{k=2}^{∞}a_{k}z^{k}, that is defined in the open unit disk U={z:|z|<1}. We define a class of functions by using Aouf et al. [3] operator D_{q,λ}ⁿ and Jackson q- derivative in the open unit disk U which for different values of its parameters many special new classes can be obtained from it. For this class of functions, we obtained some of its properties such as coefficient estimates, neighborhood of function and the modified Hadamard product of two functions in it and also for function which its coefficients are the sum of the squares of the coefficients of two functions. Key results demonstrate the influence of the Aouf et al. [3] operator on the univalence, growth theorems and distortion properties for this class of functions. Also we obtained analogue results of these results for each of the subclass obtained from this class.

Electronic Journal of Mathematical Analysis and ApplicationsVol. 13(1)
Beni-Suef University (EG), Mansoura University (EG)
Reduced inequalities
Openalex Percentile: Top 94%
Approximation Theory and Sequence Spaces
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