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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…

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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].

Complex Variables · Mathematics 2015-07-31 Abdallah El Farissi , Zinelâabidine Latreuch , Benharrat Belaïdi , Asim Asiri

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…

Complex Variables · Mathematics 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 $[2]$.

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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].

Complex Variables · Mathematics 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.

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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.…

Complex Variables · Mathematics 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.

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 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…

Classical Analysis and ODEs · Mathematics 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…

Complex Variables · Mathematics 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…

Complex Variables · Mathematics 2022-09-15 Abhijit Banerjee , Bikash Chakraborty
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