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In this paper we mainly study the existence and the form of entire solutions with finite order for the following system of Fermat-type difference and partial differential-difference equations $$\begin{cases} f_1(z)^2+(\Delta_cf_2(z))^2=1\cr…

Complex Variables · Mathematics 2022-01-27 Goutam Haldar

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

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

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

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, 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 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

We utilise recent results about the transcendental solutions to Riccati differential equations to provide a comprehensive description of the nature of the transcendental solutions to algebraic first order differential equations of genus…

Complex Variables · Mathematics 2017-06-07 Norbert Steinmetz

In this paper, we study the growth 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 $P_j(z)$ are polynomials for…

Complex Variables · Mathematics 2025-04-04 Xiong-Feng Liu , Zhi-Tao Wen , Can-Xin Zhu

In this paper, we study the transcendental entire solutions for the nonlinear differential-difference equations of the forms: $f^{2}(z)+\widetilde{\omega} f(z)f'(z)+q(z)e^{Q(z)}f(z+c)=u(z)e^{v(z)}$, and $f^{n}(z)+\omega…

Complex Variables · Mathematics 2021-02-05 Nan Li , Jiachuan Geng , Lianzhong Yang

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

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

The main purpose of this article is concerned with the existence and the precise forms of the transcendental solutions of several refined versions of Fermat-type functional equations with polynomial coefficients in several complex variables…

Complex Variables · Mathematics 2023-07-13 Molla Basir Ahamed , Sanju Mandal

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

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

In this paper, we study the existence and non-existence of entire solutions of certain non-linear delay-differential equations.

Complex Variables · Mathematics 2024-07-30 Nidhi Gahlian

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 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

In this paper we study about the existence of solutions of certain kind of non-linear differential and differential-difference equations. We give partial answer to a problem which was asked by chen et al. in [13].

Complex Variables · Mathematics 2022-02-09 Garima Pant , Manisha Saini

This paper investigates the exponential Diophantine equation of the form $a^x+b=c^y$, where $a, b, c$ are given positive integers with $a,c \ge 2$, and $x,y$ are positive integer unknowns. We define this form as a "Type-I transcendental…

Number Theory · Mathematics 2025-10-15 Zeyu Cai
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