Eliminating the Pollution Effect in Helmholtz Problems by Local Subscale Correction

来源 :第八届工业与应用数学国际大会 | 被引量 : 0次 | 上传用户：hebeikbyz

【摘要】

：

　　We introduce a new Petrov-Galerkin multiscale method for the numerical approximation of the Helmholtz equation with large wave number k in bounded domains.

【作者】

：

Peterseim Daniel

【机构】

：

Universit(a)t Bonn

【出处】

：

第八届工业与应用数学国际大会

【发表日期】

：

2015年期

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

　　We introduce a new Petrov-Galerkin multiscale method for the numerical approximation of the Helmholtz equation with large wave number k in bounded domains.

其他文献

Integration,Approximation and Discrepancy

　　Numerical methods for high dimensional integration and approximation play a crucial role in a number of applications.

会议

Liquidity Adjusted Futures Pricing Model

　　This paper proposes a new model introducing liquidity risk factor into the futures pricing model.Empirically,we find that the liquidity adjusted futures pri

会议

Computational Optimal Control of the Current Profile Evolution in Fusion Plasmas

　　The central task of current profile control during the ramp-up phase of a tokamak discharge is to find the actuator trajectories that are necessary to achie

会议

Reduced-order Control Design for the Monodomain Equations

　　The monodomain equations represent a reasonably accurate model for the electric potential of the human heart.The PDE-ODE structure of the linearized model l

会议

Fully Discrete Needlet Approximation on the Sphere

　　Spherical needlets provide a multiscale decomposition of real square integrable functions on the unit sphere.The original spherical needlet decomposition ha

会议

Analysis and Optimal Control of A Gradient Enhanced Damage Model

　　The talk is concerned with a damage model including two damage variables,a local and a non-local one,which are coupled through a penalty term in the free en

会议

Mathematical Modelling,Analysis and Computation for Bose-Einstein condensation

　　Recently,modeling and simulation of Bose-Einstein condensates(BEC)at zero temperature are one of most interesting research topics in physics as well as appl

会议

Multi-scale Methods for Elliptic Equations with Highly Oscillatory Periodic Diffusion Coefficients a

　　We study the limiting distribution of the random part of the homogenization error of elliptic equations with highly oscillatory periodic diffusion coefficie

会议

Multiscale Approximations for Mixed Finite Element Methods

　　We propose and analyze a mixed finite element method for solving elliptic multiscale problems.The method is based on a localized orthogonal decomposition(LO

会议

Fast Multiscale Gaussian Wavepacket Transforms and Multiscale Gaussian Beams for Wave Equations

　　We develop new multiscale Gaussian beam methods for initial boundary value problems of wave equations in the high frequency regime.The starting tools are fa

会议

Eliminating the Pollution Effect in Helmholtz Problems by Local Subscale Correction

与本文相关的学术论文