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相关论文: Further results on normal families of meromorphic …

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By using Nevanlinna theory, we prove some normality criteria for a family of meromorphic functions under a condition on differential polynomials generated by the members of the family.

复变函数 · 数学 2017-01-26 Gerd Dethloff , Tran Van Tan , Nguyen Van Thin

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 present a function-sharing criterion for the normality of meromorphic functions. Let $f$ be a meromorphic function in the unit disc $\mathbb{D}\subset \mathbb{C}$, $\psi_1$, $\psi_2$, and $\psi_3$ be three meromorphic…

复变函数 · 数学 2025-09-23 Gopal Datt , Ritesh Pal , Ashish Kumar Trivedi

In the present paper, we introduced the extended bicomplex plane $\bar{\mathbb{T}}$, its geometric model: the bicomplex Riemann sphere, and the bicomplex chordal metric that enables us to talk about the convergence of the sequences of…

复变函数 · 数学 2011-05-24 K. S. Charak , D. Rochon , N. Sharma

In this paper, a normality criterion concerning a sequence of meromorphic functions and their differential polynomials is obtained. Precisely, we have proved: Let $\left\{f_j\right\}$ be a sequence of meromorphic functions in the open unit…

复变函数 · 数学 2024-06-14 Nikhil Bharti

Let $\mathcal{F}\subset\mathcal{M}(D)$ and let $a, b$ and $c$ be three distinct complex numbers. If, there exist a holomorphic function $h$ on $D$ and a positive constant $\rho$ such that for each $f\in\mathcal{F},$ $f$ and $f^{'}$…

复变函数 · 数学 2024-11-11 Kuldeep Singh Charak , Manish Kumar , Anil Singh

Two meromorphic functions $ f $ and $ g $ are said to share a value $ s\in\mathbb{C}\cup\{\infty\} $ $ CM $ $ (IM) $ provided that $ f(z)-s $ and $ g(z)-s $ have the same set of zeros counting multiplicities (ignoring multiplicities). We…

复变函数 · 数学 2021-08-18 Molla Basir Ahamed

We consider a family $\mathscr{F}$ of meromorphic functions defined in a domain $D$, a holomorphic function $\psi$ and a homogeneous differential polynomial $ P[f] $ of degree $d$ with weight $w$. In this paper, we prove the normality of…

复变函数 · 数学 2026-03-13 Kuntal Mandal , Bipul Pal

In this paper, we extend a result of Schwick concerning normality and sharing values in one complex variable for families of holomorphic curves taking values in $\mathbb{P}^n$. We consider wandering moving hyperplanes (i.e., depending on…

复变函数 · 数学 2024-10-18 Gopal Datt , Naveen Gupta , Nikhil Khanna , Ritesh Pal

In this paper, we prove some results in normal family of meromorphic mappings intersecting with moving hypersurfaces. As some applications, we establish some results for normal mapping and extension of holomorphic mappings. A our result is…

复变函数 · 数学 2020-02-18 Nguyen Van Thin , Wei Chen

In the work, we focus on a conjecture due to Z.X. Chen and H.X. Yi[1] which is concerning the uniqueness problem of meromorphic functions share three distinct values with their difference operators. We prove that the conjecture is right for…

复变函数 · 数学 2015-04-14 Feng Lü , Weiran Lü

In this paper, on the basis of a specific question raised in [6], we further continue our investigations on the uniqueness of a meromorphic function with its higher derivatives sharing two sets and answer the question affirmatively.…

复变函数 · 数学 2018-01-08 Abhijit Banerjee , Bikash Chakraborty

In this paper we prove the result: Let $\mathcal{F}$ be a family of meromorphic functions on a domain $\Omega$ such that every pair of members of $\mathcal{F}$ shares a set $S:=\left\{\psi_1(z), \psi_2(z), \psi_3(z) \right\}$ in $\Omega$,…

复变函数 · 数学 2015-09-22 Kuldeep Singh Charak , Virender Singh

The authors lay the foundations for the study of normal families of holomorphic functions and mappings on an infinite-dimensional normed linear space. Characterizations of normal families, in terms of value distribution, spherical…

复变函数 · 数学 2007-05-23 Kang-Tae Kim , Steven Krantz

We prove a Zalcman-Pang lemma in several complex variables and apply it to obtain several complex variables analogues of the known normality criteria like Lappan's five-point theorem and Schwick's theorem.

复变函数 · 数学 2020-07-06 Kuldeep Singh Charak , Rahul Kumar

We consider the family of all functions holomorphic in the unit disk for which the zeros lie on one ray while the 1-points lie on two different rays. We prove that for certain configurations of the rays this family is normal outside the…

复变函数 · 数学 2020-12-29 Walter Bergweiler , Alexandre Eremenko

In this paper, we shall study the uniqueness problems on meromorphic functions sharing a polynomial. We give a complete answer to a problem posed by Fang Mingliang. Our results improve or generalize those given by Fang and Hua, Yang and…

复变函数 · 数学 2012-04-20 Xiao-Bin Zhang , Jun-Feng Xu , Hong-Xun Yi

This paper is devoted to the uniqueness problem of the power of a meromorphic function with its differential polynomial sharing a set. Our result will extend a number of results obtained in the theory of normal families. Some questions are…

复变函数 · 数学 2022-09-15 Abhijit Banerjee , Bikash Chakraborty

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

We prove two sufficient conditions of quasi-normality in which each pair $f$ and $g$ of $\mathcal{F}$ shares some holomorphic functions.

复变函数 · 数学 2016-08-12 Gopal Datt