Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Huo Tang"'
Publikováno v:
AIMS Mathematics, Vol 9, Iss 10, Pp 28931-28954 (2024)
Inequalities are essential in solving mathematical problems in many different areas of mathematics. Among these, problems involving coefficient combinations that occurred in the Taylor–Maclaurin series of the inverse of complex-valued analytic func
Externí odkaz:
https://doaj.org/article/7813942dcb6a4596a46b4822769a2b1b
Publikováno v:
Axioms, Vol 13, Iss 8, p 509 (2024)
In this article, the authors use the Faber polynomial expansions to find the general coefficient estimates for a few new subclasses of bi-univalent functions with bounded boundary rotation and bounded radius rotation. Some of the results improve the
Externí odkaz:
https://doaj.org/article/6437867efa964806826b443523a5744b
Publikováno v:
Journal of Mathematics, Vol 2024 (2024)
Suppose that ST1 is a class of close-to-star functions. In this paper, we investigated the estimate of Zalcman functional on the logarithmic coefficients and the third Hankel determinant for the class ST1 with the determinant entry of logarithmic coe
Externí odkaz:
https://doaj.org/article/0571537b56fe472fb3824fba81703e8c
Publikováno v:
AIMS Mathematics, Vol 8, Iss 5, Pp 12133-12142 (2023)
In this paper, we define second-order $ \lambda $-Hadamard product of a class of meromorphic Janowski function and study the closure properties of the above product.
Externí odkaz:
https://doaj.org/article/b826031aaf91467a81563b5a571de8ea
Publikováno v:
Axioms, Vol 13, Iss 6, p 359 (2024)
In this research article, we introduce new family RG of holomorphic functions, which is related to the generalized bounded turning and generating functions of Gregory coefficients. Leveraging the concept of functions with positive real parts, we acqu
Externí odkaz:
https://doaj.org/article/8a8b7f01de624f5e95063d94cb99b865
Publikováno v:
AIMS Mathematics, Vol 7, Iss 11, Pp 19727-19738 (2022)
In recent years, many authors have studied and investigated majorization results for different subclasses of analytic functions. In this paper, we give some majorization results for certain non vanishing analytic functions, whose ratios are subordina
Externí odkaz:
https://doaj.org/article/16d9fcd13a63486088f50036e4914b67
Publikováno v:
Symmetry, Vol 15, Iss 10, p 1865 (2023)
In the current article, we utilize the concept of subordination to establish a new subclass of analytic functions associated with a bounded domain that is symmetric about the real axis. By applying the convolution technique, we derive the necessary a
Externí odkaz:
https://doaj.org/article/10213481d43446f483f213b15c76107c
Publikováno v:
Symmetry, Vol 15, Iss 10, p 1837 (2023)
The basic aspect of the research on coefficient problems for numerous families of univalent functions is to describe the coefficients of functions in a specific family by the coefficients of the Carathéodory functions. Thus, in utilizing the inequal
Externí odkaz:
https://doaj.org/article/94eaf9ed5bad49a99d25f876417582df
Publikováno v:
Mathematics, Vol 11, Iss 18, p 3966 (2023)
In this article, we use the q-derivative operator and the principle of subordination to define a new subclass of analytic functions related to the q-Ruscheweyh operator. Sufficient conditions, sharp bounds for the initial coefficients, a Fekete–Sze
Externí odkaz:
https://doaj.org/article/ca7e088ee6e643b7b9ad5a3832a2b5f3
Publikováno v:
AIMS Mathematics, Vol 7, Iss 4, Pp 6365-6380 (2022)
In this present investigation, the authors obtain Fekete-Szegö inequality for certain normalized analytic function $ f(\zeta) $ defined on the open unit disk for which $ (f'(\zeta)^{\vartheta}\left( \frac{\zeta f'(\zeta )}{f(\zeta )}\right)^{1-\v
Externí odkaz:
https://doaj.org/article/3d5423efa07e440e84c5f424d2ed4b9e