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Latent representation learned from multi-layered neural networks via hierarchical feature abstraction enables recent success of deep learning. Under the deep learning framework, generalization performance highly depends on the learned…

机器学习 · 计算机科学 2016-11-07 Hyo-Eun Kim , Sangheum Hwang , Kyunghyun Cho

We introduce a new approach for designing numerical schemes for stochastic differential equations (SDEs). The approach, which we have called direction and norm decomposition method, proposes to approximate the required solution $X_t$ by…

数值分析 · 数学 2017-02-21 C. M. Mora , H. A. Mardones , J. C. Jimenez , M. Selva , R. Biscay

In this paper, we propose a novel algorithm called Neuron-wise Parallel Subspace Correction Method (NPSC) for the finite neuron method that approximates numerical solutions of partial differential equations (PDEs) using neural network…

数值分析 · 数学 2025-11-11 Jongho Park , Jinchao Xu , Xiaofeng Xu

We consider the numerical approximation of a general second order semi--linear parabolic stochastic partial differential equation (SPDE) driven by additive space-time noise. We introduce a new modified scheme using a linear functional of…

数值分析 · 数学 2016-07-20 Gabriel J Lord , Antoine Tambue

We propose two novel conditional gradient-based methods for solving structured stochastic convex optimization problems with a large number of linear constraints. Instances of this template naturally arise from SDP-relaxations of…

机器学习 · 计算机科学 2020-07-09 Maria-Luiza Vladarean , Ahmet Alacaoglu , Ya-Ping Hsieh , Volkan Cevher

We consider an infinite-dimensional dynamical system with polynomial nonlinearity and additive noise given by a finite number of Wiener processes. By studying how randomness is spread by the system we develop a counterpart of Hormander's…

概率论 · 数学 2007-05-23 Yuri Bakhtin , Jonathan C. Mattingly

In this paper, we show that suitable transport noises produce anomalous dissipation of both enstrophy of solutions to 2D Navier-Stokes equations and of energy of solutions to diffusion equations in all dimensions. The key ingredients are…

偏微分方程分析 · 数学 2025-10-10 Antonio Agresti

The relation between Latttice Boltzmann Method, which has recently become popular, and the Kinetic Schemes, which are routinely used in Computational Fluid Dynamics, is explored. A new discrete velocity model for the numerical solution of…

comp-gas · 物理学 2009-10-31 Michael Junk , S. V. Raghurama Rao

This article provides a general iterative approximation to partial differential equations, and thus establish existence of smooth solution. The heart of the method is to contract (or expand) the boundary conditions uniformly in the domain,…

偏微分方程分析 · 数学 2024-07-16 Chang Gao

We give new a priori assumptions on weak solutions of the Navier-Stokes equation so as to be able to conclude that they are smooth. The regularity criteria are given in terms of mixed radial-angular weighted Lebesgue space norms.

偏微分方程分析 · 数学 2015-01-13 Renato Lucà

In the present work, a multi-scale framework for neural network enhanced methods is proposed for approximation of function and solution of partial differential equations (PDEs). By introducing the multi-scale concept, the total solution of…

数值分析 · 数学 2022-09-07 Xiaodan Ren

The construction of weak solutions to compressible Navier-Stokes equations via a numerical method (including a rigorous proof of the convergence) is in a short supply, and so far, available only for one sole numerical scheme suggested in…

数值分析 · 数学 2020-07-06 Young-Sam Kwon , Antonin Novotny

We consider surface finite elements and a semi-implicit time stepping scheme to simulate fluid deformable surfaces. Such surfaces are modeled by incompressible surface Navier-Stokes equations with bending forces. Here, we consider closed…

数值分析 · 数学 2023-05-03 Veit Krause , Axel Voigt

Stochastic differential equations (SDEs) are a ubiquitous modeling framework that finds applications in physics, biology, engineering, social science, and finance. Due to the availability of large-scale data sets, there is growing interest…

机器学习 · 统计学 2025-03-04 Ziheng Guo , James Greene , Ming Zhong

We address the solution of the distributed control problem for the steady, incompressible Navier--Stokes equations. We propose an inexact Newton linearization of the optimality conditions. Upon discretization by a finite element scheme, we…

数值分析 · 数学 2025-04-16 Santolo Leveque , Michele Benzi , Patrick E. Farrell

In this paper, we give a brief survey of recent results on axially symmetric Navier-Stokes equations (ASNS) in the following categories: regularity criterion, Liouville property for ancient solutions, decay and vanishing of stationary…

偏微分方程分析 · 数学 2024-08-05 Qi S. Zhang

We develop a spectral method for solving the incompressible generalized Navier--Stokes equations in the ball with no-flux and prescribed slip boundary conditions. The algorithm achieves an optimal complexity per time step of…

数值分析 · 数学 2021-04-21 Nicolas Boullé , Jonasz Słomka , Alex Townsend

We present an adaptive finite element method for the incompressible Navier--Stokes equations based on a standard splitting scheme (the incremental pressure correction scheme). The presented method combines the efficiency and simplicity of a…

数值分析 · 数学 2012-05-15 Kristoffer Selim , Anders Logg , Mats G. Larson

In this paper, we study local regularity of the solutions to the Stokes equations near a curved boundary under no-slip or Navier boundary conditions. We extend previous boundary estimates near a flat boundary to that near a curved boundary,…

偏微分方程分析 · 数学 2025-10-23 Hui Chen , Su Liang , Tai-Peng Tsai

The integral equation approach to partial differential equations (PDEs) provides significant advantages in the numerical solution of the incompressible Navier-Stokes equations. In particular, the divergence-free condition and boundary…

数值分析 · 数学 2020-02-26 Ludvig af Klinteberg , Travis Askham , Mary Catherine Kropinski