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Let $f$ be a transcendental meromorphic function defined in the complex plane $\mathbb{C}$. We consider the value distribution of the differential polynomial $f^{q_{0}}(f^{(k)})^{q_{k}}$, where $q_{0}(\geq 2), q_{k}(\geq 1)$ are $k(\geq1)$…

Complex Variables · Mathematics 2020-01-07 Bikash Chakraborty , Sudip Saha , Amit Kumar Pal , Jayanta Kamila

The aim of this paper is to consider the value distribution of a differential monomial generated by a transcendental meromorphic function.

Complex Variables · Mathematics 2018-12-06 Bikash Chakraborty

This paper aims to study the periodicity of a transcendental entire function of hyper-order less than one. For a transcendental entire function of hyper order less than one and a non-zero complex constant $c$, $\mathfrak{f} (z) \equiv…

Complex Variables · Mathematics 2025-06-27 Soumon Roy , Ritam Sinha

Let $f$ be a transcendental meromorphic function defined in the complex plane $\mathbb{C}$, and $\varphi(\not\equiv 0,\infty)$ be a small function of $f$. In this paper, We give a quantitative estimation of the characteristic function $T(r,…

Complex Variables · Mathematics 2020-08-31 Weiran Lü , Bikash Chakraborty

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…

Complex Variables · Mathematics 2021-03-08 Goutam Haldar

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

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…

Complex Variables · Mathematics 2019-03-04 Subhas S. Bhoosnurmath , Bikash Chakraborty , H. M. Srivastava

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

In this paper, we study the uniqueness of the differential-difference polynomials of entire functions on $\mathbb{C}^{n}$. We prove the following result: Let $f(z)$ be a transcendental entire function on $\mathbb{C}^{n}$ of hyper-order less…

Complex Variables · Mathematics 2021-06-07 Xiao Huang

Let $f$ be a transcendental entire function with hyper-order strictly less than 1 and having a Borel exceptional small function. If $f$ and $\Delta^n f$, or $f'$ and $f(z+1)$, share a function CM, then the exact form of $f$ is determined,…

Complex Variables · Mathematics 2026-05-22 Xuxu Xiang , Jianren Long

Given an entire function $f$ of finite order $\rho$, let $L(z,f)=\sum_{j=0}^{m}b_{j}(z)f^{(k_{j})}(z+c_{j})$ be a linear delay-differential polynomial of $f$ with small coefficients in the sense of $O(r^{\lambda+\varepsilon})+S(r,f)$,…

Complex Variables · Mathematics 2022-05-17 Nan Li , Lianzhong Yang

An example in the article shows that the first derivative of $f(z)=\frac{2}{1-e^{-2z}}$ sharing $0$ CM and $1,\infty$ IM with its shift $\pi i$ cannot obtain they are equal. In this paper, we study the uniqueness of meromorphic function…

Complex Variables · Mathematics 2022-05-09 XiaoHuang Huang

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 investigate the zero distributions of $q$-shift difference-differential polynomials of meromorphic functions with zero-order that extends and generalizes the classical Hayman results of the zeros of differential…

Complex Variables · Mathematics 2021-03-09 Goutam Haldar

This paper investigates the value distribution and growth properties of linear total differential polynomials $\mathcal{L}_k[D]f$ for meromorphic functions in several complex variables $\mathbb{C}^n$. By extending the classical Milloux…

Complex Variables · Mathematics 2026-01-22 Molla Basir Ahamed , Vasudevarao Allu

In this note, we study the arithmetic nature of values of modular functions, meromorphic modular forms and meromorphic quasi-modular forms with respect to arbitrary congruence subgroups, that have algebraic Fourier coefficients. This…

Number Theory · Mathematics 2024-08-02 Tapas Bhowmik , Siddhi Pathak

In this paper, we study all possible orders which are less than 1 of transcendental entire solutions of linear difference equations \begin{equation} P_m(z)\Delta^mf(z)+\cdots+P_1(z)\Delta f(z)+P_0(z)f(z)=0,\tag{+} \end{equation} where…

Complex Variables · Mathematics 2023-01-18 Katsuya Ishizaki , Zhi-Tao Wen

Let $f$ be a transcendental meromorphic function in the complex plane $\mathbb{C}$, and $a$ be a nonzero complex number . We give quantitative estimates for the characteristic function $T(r,f)$ in terms of $N(r,1/(f^l(f^{(k)})^n-a))$, for…

Complex Variables · Mathematics 2014-05-16 Jiang Yan , Huang Bin

In this paper, we prove some value distribution results which lead to some normality criteria for a family of analytic functions. These results improve some recent results.

Complex Variables · Mathematics 2021-01-05 Sudip Saha , Bikash Chakraborty

In this paper, we study the value distribution of zeros of certain nonlinear difference polynomials of entire functions of finite order.

Complex Variables · Mathematics 2018-01-23 Zinelâabidine Latreuch , Benharrat Belaïdi
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