Comprehensive subclass of univalent functions associated with the Gegenbauer polynomial and the Bahalola operator | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقالات آماده انتشار، اصلاح شده برای چاپ، انتشار آنلاین از 29 آبان 1404 اصل مقاله (351.95 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2025.35692.5307 | ||
| نویسندگان | ||
| Sahar Ahmadpour* 1؛ Shahram Najafzadeh2؛ mohammadreza foroutan1؛ Robab Haghi1 | ||
| 1Department of Mathematics, Payame Noor University, P. O. Box: 19395-3697, Tehran, Iran | ||
| 2Department of Mathematics, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran | ||
| چکیده | ||
| Our objective in this paper is to introduce a newly constructed subclass of univalent functions. The Gegenbauer Polynomials are very successful in the theory of polynomials because they extend many polynomials, such as Legendre, Chebyshev polynomials, etc. Also, the Babolala operator for a fixed real number is used. Furthermore, by applying the convolution structures and subordination property, the new subclass is obtaind. For this new subclass, first, the share coefficient bounds are determined. These coefficient estimates are very important to obtain the geometric properties. So after that, we obtain the radii of starlikeness, convexity and close-to-convexity. Also, under some restrictions on parameters, we show that the newly defined subclass has a convolution-preserving property. Finally, the convexity of this subclass is pointed out. Our objective in this paper is to introduce a newly constructed subclass of univalent functions. The Gegenbauer Polynomials are very successful in the theory of polynomials because they extend many polynomials, such as Legendre, Chebyshev polynomials, etc. Also, the Babolala operator for a fixed real number is used. Furthermore, by applying the convolution structures and subordination property, the new subclass is obtaind. For this new subclass, first, the share coefficient bounds are determined. These coefficient estimates are very important to obtain the geometric properties. So after that, we obtain the radii of starlikeness, convexity and close-to-convexity. Also, under some restrictions on parameters, we show that the newly defined subclass has a convolution-preserving property. Finally, the convexity of this subclass is pointed out. | ||
| کلیدواژهها | ||
| Univalent function؛ Gegenbauer Polynomial؛ Bahalola operator؛ Convolution؛ Subordination؛ Convex set؛ coefficient estimate؛ radii of starlikeness؛ Convexity and close-to-convexity | ||
| مراجع | ||
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