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This paper studies the uniqueness of two non-constant meromorphic functions when they share a finite set. Moreover, we will give the existence of unique range sets for meromorphic functions that are zero sets of polynomials that do not…

复变函数 · 数学 2021-04-08 Bikash Chakraborty

In this paper, we have investigated the uniqueness problems of entire and meromorphic functions concerning differential polynomials sharing a small function. Our results radically extended and improved the results of Bhoosnurmath-Pujari and…

复变函数 · 数学 2019-07-01 Molla Basir Ahamed

n this article we consider functions meromorphic in the unit disk. We give an elementary proof for a condition that is sufficient for the univalence of such functions which also contains some known results. We include few open problems for…

复变函数 · 数学 2019-05-07 See Keong Lee , Saminathan Ponnusamy , Karl-Joachim Wirths

In this paper we have mainly focused on the uniqueness of two meromorphic functions under the realm of two shared sets problem with certain restrictions which in turn improve the results of { P. Sahoo and H. Karmakar, Uniqueness theorems…

复变函数 · 数学 2020-09-01 Abhijit Banerjee , Saikat Bhattacharyya

In this paper, we investigate the value distribution for linear q-difference polynomials of transcendental meromorphic functions of zero order which improves the results of Xu, Liu and Cao (\cite{Xu & Liu & Cao & 2015}). We also investigate…

复变函数 · 数学 2021-03-08 Goutam Haldar

With the help of the notion of weighted sharing of sets, this paper dealt with the question posed by \emph{Yi} \cite{Yi-SC-1994} regarding the uniqueness of meromorphic functions concerning three set sharing. A result has been proved which…

复变函数 · 数学 2020-05-13 Molla Basir Ahamed

The purpose of this article is to study the uniqueness problem for meromorphic mappings from $\mathbb{C}^{n}$ into the complex projective space $\mathbb{P}^{N}(\mathbb{C}).$ By making using of the method of dealing with multiple values due…

复变函数 · 数学 2015-03-27 Ting-Bin Cao , Hong-Xun Yi

We consider transcendental meromorphic functions for which the zeros, 1-points and poles are distributed on three distinct rays. We show that such functions exist if and only if the rays are equally spaced. We also obtain a normal family…

复变函数 · 数学 2022-03-08 Walter Bergweiler , Alexandre Eremenko

In this paper, we prove some uniqueness results which improve and generalize several earlier works. Also, we prove a value distribution result concerning $f^{(k)}$ which provides a partial answer to a question of Fang and Wang [A note on…

复变函数 · 数学 2014-12-30 Kuldeep Singh Charak , Banarsi Lal

In this paper we prove some normality criteria for a family of meromorphic functions, which involves the zeros of certain differential polynomials generated by the members of the family.

复变函数 · 数学 2017-04-19 Sanjay Kumar , Poonam Rani

Let $f$ be a transcendental meromorphic function, defined in the complex plane $\mathbb{C}$. In this paper, we give a quantitative estimations of the characteristic function $T(r,f)$ in terms of the counting function of a homogeneous…

复变函数 · 数学 2019-03-04 Subhas S. Bhoosnurmath , Bikash Chakraborty , H. M. Srivastava

In this paper, we extend the uniqueness theorem for meromorphic mappings to the case where the family of hyperplanes depends on the meromorphic mapping and where the meromorphic mappings may be degenerate.

复变函数 · 数学 2014-12-01 G. Dethloff , Tan Tran Van , Si Duc Quang

In this article, we prove a normality criterion for a family of meromorphic functions which involves sharing of holomorphic functions. Our result generalizes some of the results of H. H. Chen, M. L. Fang and M. Han, Y. Gu.

复变函数 · 数学 2024-02-20 Gopal Datt , Sanjay Kumar

This paper studies the uniqueness of two non-integral finite ordered meromorphic functions with finitely many poles when they share two finite sets. Also, studies an answer to a question posed by Gross for a particular class of meromorphic…

复变函数 · 数学 2021-01-19 Bikash Chakraborty , Amit Kumar Pal , Sudip Saha , Jayanta Kamila

In this paper, we employ the theory of normal families in several complex variables to obtain some uniqueness theorems for entire functions. These results extend the related works of Li and Yi [11], and Lu et al. [18] to the setting of…

复变函数 · 数学 2026-05-12 Sujoy Majumder , Debabrata Pramanik , Shantanu Panja

In this paper, we exhibit the equivalence between different notions of unique range sets, namely, unique range sets, weighted unique range sets and weak-weighted unique range sets under certain conditions.\par Also, we present some…

复变函数 · 数学 2021-02-08 Bikash Chakraborty , Jayanta Kamila , Amit Kumar Pal , Sudip Saha

The purpose of this article is to deal with the multiple values and uniqueness problem of meromorphic mappings from $\mathbb{C}^{m}$ into the complex projective space $\mathbb{P}^{n}(\mathbb{C})$ sharing fixed and moving hypersurfaces. We…

复变函数 · 数学 2017-02-24 Tingbin Cao , Hongzhe Cao

In this short manuscript, we will put some light on the different outcomes when two non-constant meromorphic functions share a value with prescribed weight two.

复变函数 · 数学 2024-03-27 Sudip Saha , Amit Kumar Pal , Soumon Roy

In this article we prove some normality criteria for a family of meromorphic functions which involves sharing of a non-zero value by certain differential monomials generated by the members of the family. These results generalizes some of…

复变函数 · 数学 2024-02-20 Gopal Datt , Sanjay Kumar

We prove a new bound on the number of shared values of distinct meromorphic functions on a compact Riemann surface, explain a mistake in a previous paper on this topic, and give a survey of related questions.

复变函数 · 数学 2022-06-08 Zhiguo Ding , Michael E. Zieve