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Many problems in science and engineering can be represented by a set of partial differential equations (PDEs) through mathematical modeling. Mechanism-based computation following PDEs has long been an essential paradigm for studying topics…

机器学习 · 计算机科学 2022-11-21 Shudong Huang , Wentao Feng , Chenwei Tang , Jiancheng Lv

We present two approaches to system identification, i.e. the identification of partial differential equations (PDEs) from measurement data. The first is a regression-based Variational System Identification procedure that is advantageous in…

计算物理 · 物理学 2024-03-28 Zhenlin Wang , Bowei Wu , Krishna Garikipati , Xun Huan

The interpretation of numerical methods, such as finite difference methods for differential equations, as point estimators suggests that formal uncertainty quantification can also be performed in this context. Competing statistical…

其他统计学 · 统计学 2019-09-24 Junyang Wang , Jon Cockayne , Chris J. Oates

The main objective of this paper is to introduce an algorithm for solving fractional and classical differential equations based on a new generalized fractional power series. The algorithm relies on expanding the solution of an FDE or an ODE…

综合数学 · 数学 2024-06-26 Youness Assebbane , Mohamed Echchehira , Mohamed Bouaouid , Mustapha Atraoui

We introduce a new class of nonlinear Stochastic Differential Equations in the sense of McKean, related to non conservative nonlinear Partial Differential equations (PDEs). We discuss existence and uniqueness pathwise and in law under…

概率论 · 数学 2015-04-16 Anthony Lecavil , Nadia Oudjane , Francesco Russo

The solution of pseudo initial value differential equations, either ordinary or partial (including those of fractional nature), requires the development of adequate analytical methods, complementing those well established in the ordinary…

数学物理 · 物理学 2019-02-05 Nicolas Behr , Giuseppe Dattoli , Ambra Lattanzi

We first strictly expressed the basic notions and research methods of abstract operators, which systematically expounded the main results of abstract operator theory. By combining abstract operators with the Laplace transform, we can easily…

偏微分方程分析 · 数学 2016-07-05 Guang-Qing Bi , Yue-Kai Bi

A completely integrable nonlinear partial differential equation (PDE) can be associated with a system of linear PDEs in an auxiliary function whose compatibility requires that the original PDE is satisfied. This associated system is called…

可精确求解与可积系统 · 物理学 2011-10-05 Mark Hickman , Willy Hereman , Jennifer Larue , Unal Goktas

Partial differential equations (PDEs) describing thermodynamically isolated systems typically possess conserved quantities (like mass, momentum, and energy) and dissipated quantities (like entropy). Preserving these conservation and…

数值分析 · 数学 2025-12-01 Boris D. Andrews , Patrick E. Farrell

We present a new scientific machine learning method that learns from data a computationally inexpensive surrogate model for predicting the evolution of a system governed by a time-dependent nonlinear partial differential equation (PDE), an…

数值分析 · 数学 2022-02-28 Elizabeth Qian , Ionut-Gabriel Farcas , Karen Willcox

In this paper we present an algorithmic procedure that transforms, if possible, a given system of ordinary or partial differential equations with radical dependencies in the unknown function and its derivatives into a system with polynomial…

经典分析与常微分方程 · 数学 2024-04-23 Sebastian Falkensteiner , Rafael Sendra

Power Series Solution method has been used traditionally for to solve Linear Differential Equations, in Ordinary and Partial form. But this method has been limited to this kind of problems. We present the solution of problems of Non Linear…

符号计算 · 计算机科学 2015-03-25 E. Lopez-Sandoval , A. Mello , J. J. Godina Nava

We develop an unsupervised machine learning algorithm for the automated discovery and identification of traveling waves in spatio-temporal systems governed by partial differential equations (PDEs). Our method uses sparse regression and…

计算物理 · 物理学 2020-05-20 Ariana Mendible , Steven L. Brunton , Aleksandr Y. Aravkin , Wes Lowrie , J. Nathan Kutz

Elliptic partial differential equations (PDEs) arise in many areas of computational sciences such as computational fluid dynamics, biophysics, engineering, geophysics and more. They are difficult to solve due to their global nature and…

计算工程、金融与科学 · 计算机科学 2022-05-09 Damyn M Chipman

We prove the existence of time-periodic, small amplitude solutions of autonomous quasilinear or fully nonlinear completely resonant pseudo-PDEs of Benjamin-Ono type in Sobolev class. The result holds for frequencies in a Cantor set that has…

偏微分方程分析 · 数学 2015-06-04 Pietro Baldi

This article develops how to generalize the invariant subspace method for deriving the analytical solutions of the multi-component (N+1)-dimensional coupled nonlinear time-fractional PDEs (NTFPDEs) in the sense of Caputo fractional-order…

偏微分方程分析 · 数学 2024-06-18 K. S. Priyendhu , P. Prakash , M. Lakshmanan

The aim of these lectures is to show that the methods of classical Hamiltonian mechanics can be profitably used to solve certain classes of nonlinear partial differential equations. The prototype of these equations is the well-known…

可精确求解与可积系统 · 物理学 2007-05-23 F. Magri , G. Falqui , M. Pedroni

The combination of Monte Carlo methods and deep learning has recently led to efficient algorithms for solving partial differential equations (PDEs) in high dimensions. Related learning problems are often stated as variational formulations…

机器学习 · 计算机科学 2022-08-08 Lorenz Richter , Julius Berner

Unlike many deterministic PDEs, stochastic equations are not amenable to the classical variational theory of Euler-Lagrange. In this paper, we show how self-dual variational calculus leads to solutions of various stochastic partial…

偏微分方程分析 · 数学 2018-02-08 Shirin Boroushaki , Nassif Ghoussoub

The logistic function is shown to be solution of the Riccati equation, some second-order nonlinear ordinary differential equations and many third-order nonlinear ordinary differential equations. The list of the differential equations having…

可精确求解与可积系统 · 物理学 2014-09-25 Nikolai A. Kudryashov , Mikhail A. Chmykhov