数値シミュレーションにおけるウェーブレット<br>Wavelets in Numerical Simulation : Problem Adapted Construction and Applications (Lecture Notes in Computational Science and Engineering, 22)

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数値シミュレーションにおけるウェーブレット
Wavelets in Numerical Simulation : Problem Adapted Construction and Applications (Lecture Notes in Computational Science and Engineering, 22)

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  • 製本 Paperback:紙装版/ペーパーバック版／ページ数 181 p.
  • 言語 ENG
  • 商品コード 9783540430551
  • DDC分類 515.2433

Full Description

Sapere aude! Immanuel Kant (1724-1804) Numerical simulations playa key role in many areas of modern science and technology. They are necessary in particular when experiments for the underlying problem are too dangerous, too expensive or not even possible. The latter situation appears for example when relevant length scales are below the observation level. Moreover, numerical simulations are needed to control complex processes and systems. In all these cases the relevant problems may become highly complex. Hence the following issues are of vital importance for a numerical simulation: - Efficiency of the numerical solvers: Efficient and fast numerical schemes are the basis for a simulation of 'real world' problems. This becomes even more important for realtime problems where the runtime of the numerical simulation has to be of the order of the time span required by the simulated process. Without efficient solution methods the simulation of many problems is not feasible. 'Efficient' means here that the overall cost of the numerical scheme remains proportional to the degrees of freedom, i. e. , the numerical approximation is determined in linear time when the problem size grows e. g. to upgrade accuracy. Of course, as soon as the solution of large systems of equations is involved this requirement is very demanding.

Contents

1 Wavelet Bases.- 1.1 Wavelet Bases in L2(?).- 1.2 Wavelets on the Real Line.- 1.4 Tensor Product Wavelets.- 1.5 Wavelets on General Domains.- 1.6 Vector Wavelets.- 2 Wavelet Bases for H(div) and H(curl).- 2.1 Differentiation and Integration.- 2.2 The Spaces H(div) and H (curl).- 2.3 Wavelet Systems for H (curl).- 2.4 Wavelet Bases for H(div).- 2.5 Helmholtz and Hodge Decompositions.- 2.6 General Domains.- 2.7 Examples.- 3 Applications.- 3.1 Robust and Optimal Preconditioning.- 3.2 Analysis and Simulation of Turbulent Flows.- 3.3 Hardening of an Elastoplastic Rod.- References.- List of Figures.- List of Tables.- List of Symbols.