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The notion of viscosity solutions of scalar fully nonlinear partial differential equations of second order provides a framework in which startling comparison and uniqueness theorems, existence theorems, and theorems about continuous…

偏微分方程分析 · 数学 2008-02-03 Michael G. Crandall , Hitoshi Ishii , Pierre-Louis Lions

The purpose of the paper is to review a variety of recent developments in the theory of positive solutions of general linear elliptic and parabolic equations of second-order on noncompact Riemannian manifolds, and to point out a number of…

偏微分方程分析 · 数学 2007-05-23 Yehuda Pinchover

We develop a randomized Newton's method for solving differential equations, based on a fully connected neural network discretization. In particular, the randomized Newton's method randomly chooses equations from the overdetermined nonlinear…

数值分析 · 数学 2019-12-09 Qipin Chen , Wenrui Hao

This is not a new result. Purpose of this work is to describe a method to search the analytical expression of the general real solution of the two-dimensional Laplace differential equation. This thing is not easy to find in scientific…

偏微分方程分析 · 数学 2009-10-02 Gianluca Argentini

The method of characteristics has played a very important role in mathematical physics. Preciously, it was used to solve the initial value problem for partial differential equations of first order. In this paper, we propose a fractional…

数学物理 · 物理学 2010-07-13 Guo-cheng Wu

Several algorithms in computer algebra involve the computation of a power series solution of a given ordinary differential equation. Over finite fields, the problem is often lifted in an approximate $p$-adic setting to be well-posed. This…

符号计算 · 计算机科学 2023-06-12 Pierre Lairez , Tristan Vaccon

We present two algorithms for computing what we call the absolute factorization of a difference operator. We also give an algorithm to solve third order difference equations in terms of second order equations, together with applications to…

交换代数 · 数学 2024-06-12 Heba Bou KaedBey , Mark van Hoeij , Man Cheung Tsui

The numerical methods for differential equation solution allow obtaining a discrete field that converges towards the solution if the method is applied to the correct problem. Nevertheless, the numerical methods have the restricted class of…

数值分析 · 数学 2023-07-03 Alexander Hvatov , Tatiana Tikhonova

A method for finding exact solutions of nonlinear differential equations is presented. Our method is based on the application of the Newton polygons corresponding to nonlinear differential equations. It allows one to express exact solutions…

可精确求解与可积系统 · 物理学 2007-05-23 Nikolai A. Kudryashov , Maria V. Demina

The invariant subspace method is refined to present more unity and more diversity of exact solutions to evolution equations. The key idea is to take subspaces of solutions to linear ordinary differential equations as invariant subspaces…

可精确求解与可积系统 · 物理学 2015-06-04 Wen-Xiu Ma

In this paper, we propose a second-order dynamical system with a smoothing effect for solving paramonotone variational inequalities. Under standard assumptions, we prove that the trajectories of this dynamical system converges to a solution…

最优化与控制 · 数学 2024-11-25 Pham Viet Hai , Trinh Ngoc Hai

The work deals with the studies of the existence of solutions of an integro-differential equation in the situation of the difference of the standard Laplacian and the bi-Laplacian in the diffusion term. The proof of the existence of…

偏微分方程分析 · 数学 2026-03-10 Vitali Vougalter , Vitaly Volpert

Ordinary Differential Equations are generally too complex to be solved analytically. Approximations thereof can be obtained by general purpose numerical methods. However, even though accurate schemes have been developed, they remain…

数值分析 · 数学 2023-04-19 Maxime Bouchereau , Philippe Chartier , Mohammed Lemou , Florian Méhats

In this article we study solutions to second order linear difference equations with variable coefficients. Under mild conditions we provide closed form solutions using finite continued fraction representations. The proof of the results are…

数论 · 数学 2024-02-05 Shirali Kadyrov , Alibek Orynbassar

It is well known that second order homogeneous linear ordinary differential equations with slowly varying coefficients admit slowly varying phase functions. This observation underlies the Liouville-Green method and many other techniques for…

数值分析 · 数学 2022-11-28 Kirill Serkh , James Bremer

We adapt the method of solution regions to prove new existence and localization results for systems of discontinuous differential equations. Some assumptions concerning the definition of a solution region are relaxed and thus our results…

经典分析与常微分方程 · 数学 2023-02-14 Jorge Rodríguez-López

Using model theory and differential algebra, we give necessary conditions for algebraic ordinary differential equations to have a complex Pfaffian solution on some complex domain. These tools also allow us to give many examples of algebraic…

逻辑 · 数学 2026-04-30 James Freitag , Léo Jimenez , Joel Nagloo

The conformable double ARA decomposition approach is presented in this current study to solve one-dimensional regular and singular conformable functional Burger's equations. We investigate the conformable double ARA transform's definition,…

综合数学 · 数学 2023-06-21 Amjad E. Hamza , Abdelilah K. Sedeeg , Rania Saadeh , Ahmad Qazza , Raed Khalil

We discuss a progress in calculation of Feynman integrals which has been done with help of the Differential Equation Method and demonstrate the results for a class of two-point two-loop diagrams.

高能物理 - 唯象学 · 物理学 2007-05-23 A. V. Kotikov

We study perturbations of linear differential equations, deriving explicit series solutions, using Dyson-type expansions. We analyze the monodromy of deformed solutions in a number of examples, and relate this to cocycles in a cohomological…

经典分析与常微分方程 · 数学 2025-09-04 Ziyu Zhang