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We present a new methodology for the real-time reduced-order modeling of stochastic partial differential equations called the dynamically/bi-orthonormal (DBO) decomposition. In this method, the stochastic fields are approximated by a…

计算物理 · 物理学 2020-06-24 Prerna Patil , Hessam Babaee

In this work, we use the spectral Galerkin method to prove the existence of a pathwise unique mild solution of a fractional stochastic partial differential equation of Burgers type in a H\"older space. We get the temporal regularity and…

偏微分方程分析 · 数学 2017-12-29 Zineb Arab , Latifa Debbi

In this paper we present iterative and noniterative splitting methods, which are used to solve stochastic Burgers' equations. The non-iterative splitting methods are based on Lie-Trotter and Strang-splitting methods, while the iterative…

数值分析 · 数学 2021-02-03 Jürgen Geiser , Karsten Bartecki

In this paper, the fractional-order Burgers-Poisson equation is introduced by replacing the first-order time derivative by fractional derivative of order $\alpha$. Both exact and approximate explicit solutions are obtained by employing…

斑图形成与孤子 · 物理学 2010-03-10 Caibin Zeng , Qigui Yang , Bengong Zhang

We analyse a new subdomain scheme for a time-spectral method for solving initial boundary value problems. Whilst spectral methods are commonplace for spatially dependent systems, finite difference schemes are typically applied for the…

计算物理 · 物理学 2017-08-08 Kristoffer Lindvall , Jan Scheffel

We are interested in the development of an algorithmic differentiation framework for computing approximations to tangent vectors to scalar and systems of hyperbolic partial differential equations. The main difficulty of such a numerical…

数值分析 · 数学 2021-03-17 Michael Herty , Jonathan Hüser , Uwe Naumann , Thomas Schilden , Wolfgang Schröder

A new differential-recurrence relation for the B-spline functions of the same degree is proved. From this relation, a recursive method of computing the coefficients of B-spline functions of degree $m$ in the Bernstein-B\'{e}zier form is…

数值分析 · 数学 2022-10-13 Filip Chudy , Paweł Woźny

This work proposes a deep learning-based emulator for the efficient computation of the coupled viscous Burgers' equation with random initial conditions. In a departure from traditional data-driven deep learning approaches, the proposed…

计算物理 · 物理学 2022-02-24 Xihaier Luo , Yihui Ren , Wei Xu , Shinjae Yoo , Balasubramanya Nadiga , Ahsan Kareem

This paper introduces a fast and numerically stable algorithm for the solution of fourth-order linear boundary value problems on an interval. This type of equation arises in a variety of settings in physics and signal processing. Our method…

数值分析 · 计算机科学 2020-01-13 William Leeb , Vladimir Rokhlin

We present a collection of algorithms which utilize dimensional reduction to perform mesh refinement and study possibly singular solutions of time-dependent partial differential equations. The algorithms are inspired by constructions used…

数值分析 · 数学 2007-06-21 Panagiotis Stinis

In this paper we consider a splitting method for the augmented Burgers equation and prove that it is of first order. We also analyze the large-time behavior of the approximated solution by obtaining the first term in the asymptotic…

数值分析 · 数学 2016-11-22 Liviu I. Ignat , Alejandro Pozo

The extended definition of the polynomial B-splines may give a chance to improve the results obtained by the classical cubic polynomial B-splines. Determination of the optimum value of the extension parameter can be achieved by scanning…

数值分析 · 数学 2017-02-10 Ozlem Ersoy Hepson , Alper Korkmaz , Idris Dag

In this paper, we consider Burgers' equation with uncertain boundary and initial conditions. The polynomial chaos (PC) approach yields a hyperbolic system of deterministic equations, which can be solved by several numerical methods. Here,…

数值分析 · 数学 2019-02-04 Philipp Öffner , Jan Glaubitz , Hendrik Ranocha

This paper deals with the discrete counterpart of 2D elliptic model problems rewritten in terms of Boundary Integral Equations. The study is done within the framework of Isogeometric Analysis based on B-splines. In such a context, the…

数值分析 · 数学 2018-02-14 A. Aimi , F. Calabrò , M. Diligenti , M. L. Sampoli , G. Sangalli , A. Sestini

In this study, a thorough investigation was conducted into the Homotopy Perturbation Method (HPM) and its application to solve the Burger and Blasius equations. The HPM is a mathematical technique that combines aspects of homotopy and…

数学物理 · 物理学 2023-10-31 Gbenga Onifade Ebenezer

This papers shows the convergence of optimal control problems where the constraint function is discretised by a particle method. In particular, we investigate the viscous Burgers equation in the whole space $\mathbb R$ by using…

最优化与控制 · 数学 2013-10-01 Jan Marburger , Rene Pinnau

We present results on stabilization for reduced order models (ROM) of partial differential equations using learning. Stabilization is achieved via closure models for ROMs, where we use a model-free extremum seeking (ES) dither-based…

系统与控制 · 计算机科学 2016-12-06 Mouhacine Benosman , Boris Kramer , Petros Boufounos , Piyush Grover

In this paper, we investigate the numerical solutions of the cubic nonlinear Schrodinger equation via the exponential B-spline collocation method. Crank-Nicolson formulas are used for time discretization of the target equation. A…

数值分析 · 数学 2016-07-04 Ozlem Ersoy , Idris Dag , Ali Sahin

An efficient coarse-mesh nodal integral method (NIM), based on cell-centered variables and termed the cell-centered NIM (CCNIM), is developed and applied to solve multi-dimensional, time-dependent, nonlinear Burgers equations, extending the…

数值分析 · 数学 2026-05-28 Nadeem Ahmed , Ram Prakash Bharti , Suneet Singh

This paper deals the implementation of \emph{homotopy perturbation transform method} (HPTM) for numerical computation of initial valued autonomous system of time-fractional partial differential equations (TFPDEs) with proportional delay,…

数值分析 · 数学 2018-02-19 Brajesh Kumar Singh , Pramod Kumar