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相关论文: Growth of Solutions of Complex Differential Equati…

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In this paper, we study the growth of solutions to higher-order complex linear differential equations in the unit disc, where the analytic coefficients are of finite ({\alpha},\b{eta},{\gamma})-order. By employing the concepts of…

复变函数 · 数学 2025-12-30 Amina Halima Arrouche , Benharrat Belaïdi

In this paper we have studied the growth of meromorphic solutions of higher order homogeneous and non-homogeneous linear difference equations with entire and meromorphic coefficients. We have extended and improved some results of Zhou and…

复变函数 · 数学 2022-01-06 Chinmay Ghosh , Subhadip Khan , Anirban Bandyopadhyay

In this article, we study the growth of solutions of the homogeneous complex linear differential equation \begin{equation*} f^{(k)}+A_{k-1}(z)f^{(k-1)}+\cdots+A_{1}(z)f^{\prime}+ A_{0}(z)f=0, \end{equation*}% where the coefficients…

复变函数 · 数学 2024-03-25 Abdelkader Dahmani , Benharrat Belaïdi

In this paper we investigate the growth of meromorphic solutions of homogeneous and non-homogeneous linear difference equations with entire or meromorphic coefficients. We further extend and improve few results on the order of meromorphic…

复变函数 · 数学 2022-06-23 Subhadip Khan , Chinmay Ghosh , Sanjib Kumar Datta

This research concerns coefficient conditions for linear differential equations in the unit disc of the complex plane. In the higher order case the separation of zeros (of maximal multiplicity) of solutions is considered, while in the…

复变函数 · 数学 2018-10-01 Janne Gröhn , Juha-Matti Huusko , Jouni Rättyä

The main aim of this paper is to study the growth of solutions of higher order linear differential equations using the concepts of $(\alpha ,\beta ,\gamma )$-order and $(\alpha ,\beta ,\gamma )$-type. We obtain some results which improve…

复变函数 · 数学 2023-08-09 Benharrat Belaïdi , Tanmay Biswas

It is known that, equally well in the unit disc as in the whole complex plane, the growth of the analytic coefficients $A_0,\dotsc,A_{k-2}$ of \begin{equation*} f^{(k)} + A_{k-2} f^{(k-2)} + \dotsb + A_1 f'+ A_0 f = 0, \quad k\geq 2,…

经典分析与常微分方程 · 数学 2023-11-07 Igor Chyzhykov , Janne Gröhn , Janne Heittokangas , Jouni Rättyä

It is shown that the order and the lower order of growth are equal for all non-trivial solutions of $f^{(k)}+A f=0$ if and only if the coefficient $A$ is analytic in the unit disc and $\log^+ M(r,A)/\log(1-r)$ tends to a finite limit as…

经典分析与常微分方程 · 数学 2023-06-13 Igor Chyzhykov , Petro Filevych , Janne Gröhn , Janne Heittokangas , Jouni Rättyä

In this paper, we deal with the growth and oscillation of solutions of higher order linear differential equations. Under the conditions that there exists a coefficient which dominates the other coefficients by its lower $% (\alpha ,\beta…

复变函数 · 数学 2024-07-30 Benharrat Belaïdi

We establish pointwise growth estimates for the spherical derivative of solutions of the first order algebraic differential equations. A generalization of this result to higher order equations is also given. We discuss the related question…

复变函数 · 数学 2019-06-14 Shamil Makhmutov , Jouni Rättyä , Toni Vesikko

In this article we have studied complex linear homogeneous difference equations where the coefficients are meromorphic functions, having finite iterated p-phi order. We have made some estimations on the growth of its nontrivial solutions.…

复变函数 · 数学 2022-06-23 Anirban Bandyopadhyay , Chinmay Ghosh , Sanjib Kumar Datta

We give an alternative and simpler method for getting pointwise estimate of meromorphic solutions of homogeneous linear differential equations with coefficients meromorphic in a finite disk or in the open plane originally obtained by Hayman…

复变函数 · 数学 2013-12-24 Yik-Man Chiang

In this article, we construct explicit meromorphic solutions of first order linear $q$-difference equations in the complex domain and we describe the location of all their zeros and poles. The homogeneous case leans on the study of four…

复变函数 · 数学 2023-07-04 Alberto Lastra , Pascal Remy

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…

复变函数 · 数学 2025-04-04 Xiong-Feng Liu , Zhi-Tao Wen , Can-Xin Zhu

In this article, we deal with the order of growth of solutions of non-homogeneous linear differential-difference equation \begin{equation*} \sum_{i=0}^{n}\sum_{j=0}^{m}A_{ij}f^{(j)}(z+c_{i})=F(z), \end{equation*} where $A_{ij},$ $F\left(…

复变函数 · 数学 2021-06-02 Rachid Bellaama , Benharrat Belaïdi

In this article, we study about the solutions of second order linear differential equations by considering several conditions on the coefficients of homogenous linear differential equation and its associated non-homogenous linear…

复变函数 · 数学 2023-06-02 Naveen Mehra , Garima Pant , S. K. Chanyal

We study about order of growth and hyper order of growth of non trivial solutions of second order linear differential equations, having restrictions in the coefficients. These restrictions involve notions of Yang's inequality, Borel…

复变函数 · 数学 2022-06-23 Garima Pant

We characterize lower growth estimates for subsolutions in halfspaces of fully nonlinear partial differential equations on the form $$ F(x,u,Du,D^2u) = 0 $$ in terms of solutions to ordinary differential equations built solely upon a growth…

偏微分方程分析 · 数学 2021-12-22 Niklas L. P. Lundström

Solutions of the differential equation $f''+Af=0$ are considered assuming that $A$ is analytic in the unit disc $\mathbb{D}$ and satisfies \begin{equation} \label{eq:dag} \sup_{z\in\mathbb{D}} \, |A(z)| (1-|z|^2)^2 \log\frac{e}{1-|z|} <…

经典分析与常微分方程 · 数学 2018-10-01 Janne Gröhn

One of the phenomena peculiar in the theory of $p$-adic differential equations is that solutions $f$ of $p$-adic differential equations defined on open discs may satisfy growth conditions at the boundaries. This phenomenon is first studied…

数论 · 数学 2024-11-26 Shun Ohkubo
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