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In the paper, we investigate the uniqueness problem of entire functions concerning their linear differential polynomial in shift and obtain three results which improve and generalize the recent result due to Qi (Ann. Polon. Math., 102…

复变函数 · 数学 2025-12-03 Jeet Sarkar , Debabrata Pramanik

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 investigate the uniqueness problem of entire functions that share an entire function with their higher-order difference operators. We obtain two results that confirm the conjectures posed by Liu and Laine \cite{LL1} and by…

复变函数 · 数学 2025-11-19 Nabadwip Sarkar , Debabrata Pramanik , Lata Mahato

In this paper, we study uniqueness problems for an entire function that shares small functions of finite order with their difference operators. In particular, we give a generalization of results in [2,3,13].

In this paper, we study the unicity of entire functions concerning their $q-$shifts and $k-$th derivatives and prove: Let $f(z)$ be a transcendental entire function of zero-order, and $g(z)$ define as in (1.1). Let $a(z), b(z)$ be two…

复变函数 · 数学 2023-07-31 XiaoHuang Huang

We investigate uniqueness problems for an entire function that shares two small functions of finite order with their difference operators. In particular, we give a generalization of a result in $[2]$.

复变函数 · 数学 2015-05-11 Zinelâabidine Latreuch , Abdallah El Farissi , Benharrat Belaidi

In the paper, we investigate the uniqueness problem of a power of an entire function that share one value partially with it's linear differential polynomial and obtain a result, which improves several previous results in a large scale. Also…

复变函数 · 数学 2025-09-25 Sujoy Majumder , Nabadwip Sarkar , Debabrata Pramanik

We prove some uniqueness results which improve and generalize results of Jiang-Tao Li and Ping Li[Uniqueness of entire functions concerning differential polynomials. Commun. Korean Math. Soc. 30 (2015), No. 2, pp. 93-101].

复变函数 · 数学 2016-08-15 Kuldeep Singh Charak , Banarsi Lal

We prove a uniqueness theorem for an entire function, which shares certain values with its higher order derivatives.

复变函数 · 数学 2014-05-02 Indrajit Lahiri , Rajib Mukherjee

We determine all entire functions $f$ such that for nonzero complex values $a\neq b$ the implications $f=a \Rightarrow f' =a$ and $f' =b \Rightarrow f=b$ hold. This solves an open problem in uniqueness theory. In this context we give a…

复变函数 · 数学 2024-03-26 Andreas Sauer , Andreas Schweizer

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 some uniqueness theorems concerning the derivatives of meromorphic functions when they share three sets. The obtained results improve some recent existing results.

复变函数 · 数学 2017-05-11 Abhijit Banerjee , Sujoy Majumder , Bikash Chakraborty

In the paper, concerning a question of Yi [23], we study general criterion for the uniqueness of an L-function and a general meromorphic function. Our results improve and extend all the existing results in this direction [23, 18, 17, 4] to…

复变函数 · 数学 2025-12-22 Sanjay Mallick , Ripan Saha

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

The uniqueness problems on transcendental meromorphic or entire functions sharing at least two values with their derivatives or linear differential polynomials have been studied and many results have been obtained. In this paper, we study a…

复变函数 · 数学 2014-05-08 Qi Han , Hongxun Yi

We consider the zeros distributions on the derivatives of difference polynomials of meromorphic functions, and present some results which can be seen as the discrete analogues of Hayman conjecture \cite{hayman1}, also partly answer the…

复变函数 · 数学 2011-07-06 Kai Liu , Xin-Ling Liu , Ting-Bin Cao

In this paper, we solve certain Fermat-type partial differential-difference equations for finite order entire functions of several complex variables. These results are significant generalizations of some earlier findings, especially those…

复变函数 · 数学 2024-12-30 Hong Yan Xu , Rajib Mandal , Raju Biswas

Motivated by open questions in the papers " Refinements and sharpenings of some double inequalities for bounding the gamma function" and "Complete monotonicity and monotonicity of two functions defined by two derivatives of a function…

经典分析与常微分方程 · 数学 2022-06-06 Mohamed Bouali

The objective of the paper is twofold. The first objective is to study the uniqueness problem of meromorphic function $f(z)$ when $f^{(1)}(z)$ shares two distinct finite values $a_1$, $a_2$ and $\infty$ CM with $\Delta_cf(z)$. In this…

复变函数 · 数学 2025-10-28 Abhijit Banerjee , Sujoy Majumder , Nabadwip Sarkar

In this paper we prove a number of results concerning uniqueness of a meromorphic function as well as its derivative sharing one or two sets. In particular, we deal with the specific question raised in [18], [19], [20] and ultimately…

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