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The aim of this study is to investigate the precise form of finite-order entire solutions to the following system of Fermat-type partial differential-difference equations: \beas \begin{cases} \left(\frac{\partial f_1\left(z_1, z_2, \ldots,…

Complex Variables · Mathematics 2025-12-03 Junfeng Xu , Sujoy Majumder , Debabrata Pramanik

The purpose of this paper is to investigate the non-constant entire as well as meromorphic solutions of the Fermat-type partial differential-difference equation: \[\left(\sum_{j=1}^m\frac{\partial f(z_1, z_2, \ldots, z_m)}{\partial…

Complex Variables · Mathematics 2025-12-03 Sujoy Majumder , Debabrata Pramanik

For two meromorphic functions $ f $ and $ g $, the equation $ f^m+g^m=1 $ can be regarded as Fermat-type equations. Using Nevanlinna theory for meromorphic functions in several complex variables, the main purpose of this paper is to…

Complex Variables · Mathematics 2022-01-26 Goutam Haldar

The equation $f^n+g^n=1$, $n\in\mathbb{N}$ can be regarded as the Fermat Diophantine equation over the function field. In this paper we study the characterization of entire solutions of some system of Fermat type functional equations by…

Complex Variables · Mathematics 2023-11-01 Goutam Haldar

The objective of this paper is to investigate the existence and the forms of the pair of finite order entire and meromorphic solutions of some certain systems of Fermat-type partial differential-difference equations of several complex…

Complex Variables · Mathematics 2026-04-14 Raju Biswas , Rajib Mandal

Using Nevanlinna's value distribution theory and the complex difference theory , the existence of the finite order of the entire solutions of the Fermat type of the complex differential-difference equation and the systems of complex…

Complex Variables · Mathematics 2017-12-25 Xianfeng Su , Qingcai Zhang

In this paper we establish some results about the existence and precise forms of finite order entire solutions of some systems of quadratic trinomial functional equations one of which in $\mathbb{C}^n$, $n\in\mathbb{N}$ and other two in…

Complex Variables · Mathematics 2023-11-02 Goutam Haldar

In this paper, utilizing Nevanlinna theory, we study existence and forms of the entire solutions $ f $ of the quadratic trinomial-type partial differential-difference equations in $ \mathbb{C}^n $ \begin{align*} a\left(\alpha\dfrac{\partial…

Complex Variables · Mathematics 2023-07-18 Sanju Mandal , Molla Basir Ahamed

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

The objective of this study is to ascertain the existence and forms of the finite order meromorphic and entire functions of several complex variables satisfying some certain Fermat-type partial differential-difference equations by…

Complex Variables · Mathematics 2024-12-30 Hong Yan Xu , Rajib Mandal , Raju Biswas

In this paper, we mainly investigate on the finite order transcendental entire solutions of two Fermat types delay-differential and one Fermat type c-shift equations, as these types were not considered earlier. Our results improve those of…

Complex Variables · Mathematics 2021-05-06 Abhijit Banerjee , Tania Biswas

In the paper, we find out the precise form of the finite order entire solutions of the following differential-difference equation \[f^{(k)}(z)=\sideset{}{^n_{j=0}}{\sum} a_j f(z+jc),\] where $a_0, a_1,\ldots,a_n(\neq 0)\in\mathbb{C}$. Also…

Complex Variables · Mathematics 2025-09-09 Junfeng Xu , Sujoy Majumder , Debabrata Pramanik

In this paper, using Nevanlinna's value distribution theory of meromorphic functions in several complex variables, we study for the existence of entire solutions $f$ in $\mathbb{C}^2$ of the following partial differential equation…

Complex Variables · Mathematics 2025-11-14 Junfeng Xu , Nabadwip Sarkar , Sujoy Majumder

The existence of entire solutions to quadratic trinomial Fermat type differential-difference equations and \(q\)-difference differential equations involving second-order derivatives is studied by using Nevanlinna theory, and the exact form…

Classical Analysis and ODEs · Mathematics 2025-10-16 Xuxu Xiang , Jianren Long

Assume that $n$ is a positive integer, $p_{j}$ ($j=1,2, \cdots, 6)$ are polynomials, $p$ is an irreducible polynomial, and $f$ is an entire function on $\mathbb{C}^{n}.$ Let $ L(f)=\sum_{j=1}^s q_{t_j}f_{z_{t_j}}$ and…

Complex Variables · Mathematics 2025-09-03 Tingbin Cao , Jun Wang , Zhuan Ye

The existence of the meromorphic solutions to Fermat type delay-differential equation \begin{equation} f^n(z)+a(f^{(l)}(z+c))^m=p_1(z)e^{a_1z^k}+p_2(z)e^{a_2z^k}, \nonumber \end{equation} is derived by using Nevanlinna theory under certain…

Complex Variables · Mathematics 2025-04-29 Xuxu Xiang , Jianren Long , Mengting Xia , Zhigao Qin

The existence of sufficiently many finite order meromorphic solutions of a differential equation, or difference equation, or differential-difference equation, appears to be a good indicator of integrability. In this paper, we investigate…

Classical Analysis and ODEs · Mathematics 2018-08-14 Li-Hao Wu , Ran-Ran Zhang , Zhi-Bo Huang

In this paper, we study about existence and non-existence of finite order transcendental entire solutions of the certain non-linear differential-difference equations. We also study about conjectures posed by Rong et al. and Chen et al.

Complex Variables · Mathematics 2021-07-30 Garima Pant , Sanjay Kumar Pant

In this paper, we consider the entire solutions of nonlinear difference equation $$f^3+q(z)\Delta f=p_1 e^{\alpha_1 z}+ p_2 e^{\alpha_2 z} $$ where $q$ is a polynomial, and $p_1, p_2, \alpha_1, \alpha_2$ are nonzero constants with…

Complex Variables · Mathematics 2020-07-27 Feng Lü , Cuiping Li , Junfeng Xu

The main objective of this study is to investigate the existence and forms of solutions of systems of general quadratic functional equations in $\mathbb{C}^n$. By utilizing Nevanlinna theory in $\mathbb{C}^n$, we explore the existence and…

Complex Variables · Mathematics 2025-11-11 Molla Basir Ahamed , Sanju Mandal
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