본문 바로가기
KERD
논문KCI 등재

Gegenbauer Polynomials For a New Subclass of Bi-univalent Functions

1

조회

0

다운로드

0

인용

0

참고문헌

키워드

주제분류수학

초록

In this study, we introduce and investigate a novel subclass of analytic biunivalent functions, which we define using Gegenbauer polynomials. We derive the initial coefficient bounds for |a2|, |a3|, and |a4|, and establish Fekete-Szego inequalities for this class. In addition, we confirm that Brannan and Clunie’s conjecture, |a2| ≤ √2, is valid for this subclass. To facilitate better understanding, we provide visualizations of the functions, using appropriately chosen parameters.

Abstract

In this study, we introduce and investigate a novel subclass of analytic biunivalent functions, which we define using Gegenbauer polynomials. We derive the initial coefficient bounds for |a2|, |a3|, and |a4|, and establish Fekete-Szego inequalities for this class. In addition, we confirm that Brannan and Clunie’s conjecture, |a2| ≤ √2, is valid for this subclass. To facilitate better understanding, we provide visualizations of the functions, using appropriately chosen parameters.

참고문헌 (7)

  1. A. Amourah, "Gegenbauer polynomials and bi-univalent functions", Palestine J. Math., 10(2), pp.625~632 (2021)
  2. D. A. Brannan, "Aspects of contemporary complex analysis" (1980), Academic Press
  3. N. N. Lebedev, "Special functions and their applications", pp.320~ (1965), Prentice-Hall, Inc.
  4. M. Lewin, "On a coefficient problem for bi-univalent functions", Proc. Amer. Math. Soc., 18(1), pp.63~68 (1967)
  5. M. Reimer, "Multivariate polynomial approximation" (2003), Birkhauser
  6. Q. H. Xu, "Coefficient estimates for a certain subclass of analytic and bi-univalent functions", Appl. Math. Lett., 25(6), pp.990~994 (2012)
  7. S. Yalçin, "A subclass with bi-univalence involving (p,q)- Lucas polynomials and its coefficient bounds", Bol. Soc. Mat. Mex, 26(3), pp.1015~1022 (2020)

관련 논문AI추천

이 간행물의 다른 논문 (11건)