The Graduate Student's Guide to Numerical Analysis '98: Lecture Notes from the VIII EPSRC Summer School in Numerical Analysis / Edition 1

The Graduate Student's Guide to Numerical Analysis '98: Lecture Notes from the VIII EPSRC Summer School in Numerical Analysis / Edition 1

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Springer Berlin Heidelberg
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The Graduate Student's Guide to Numerical Analysis '98: Lecture Notes from the VIII EPSRC Summer School in Numerical Analysis / Edition 1

Detailed lecture notes on six topics at the forefront of current research in numerical analysis and applied mathematics, with each set of notes presenting a self-contained guide to a current research area and supplemented by an extensive bibliography. In addition, most of the notes contain detailed proofs of the key results. They start from a level suitable for first year graduates in applied mathematics, mathematical analysis or numerical analysis, and proceed to current research topics. Readers will thus quickly gain an insight into the important results and techniques in each area without recourse to the large research literature. Current (unsolved) problems are also described, and directions for future research given.

Product Details

ISBN-13: 9783540657521
Publisher: Springer Berlin Heidelberg
Publication date: 06/28/1999
Series: Springer Series in Computational Mathematics , #26
Edition description: 1999
Pages: 252
Product dimensions: 6.10(w) x 9.25(h) x (d)

Table of Contents

A Simple Introduction to Error Estimation for Nonlinear Hyperbolic Conservation Laws.- 1 Introduction.- 2 Some Convection-Diffusion Problems.- 2.1 Traffic Flow.- 2.2 Propagation of Phase Transitions.- 2.3 Concluding Remarks.- 3 Continuous Dependence for Nonlinear Convection-Diffusion.- 3.1 The Standard Duality Technique and the Adjoint Problem.- 3.2 A Technique to Bypass the Resolution of the Adjoint Problem.- 3.3 A Very Simple Way of Handling the Convective Nonlinearity f.- 3.4 Continuous Dependence Results in L1-like Norms.- 3.5 Allowing the Diffusion Coefficients to Go to Zero.- 3.6 New Continuous Dependence Results.- 3.7 Relaxing the Smoothness in Time of the Approximate Solution u.- 3.8 The a Posteriori Error Estimate for Non-Smooth u.- 3.9 Concluding Remarks.- 4 Continuous Dependence for Nonlinear Convection.- 4.1 Existence and Uniqueness of the Entropy Solution.- 4.2 The Inherited Continuous Dependence Results.- 4.3 Concluding Remarks.- 5 A Posteriori Error Estimates for Continuous Approximations.- 5.1 The Error Estimate.- 5.2 Application to the Engquist-Osher Scheme.- 5.3 Explaining the Numerical Results.- 5.4 Another Error Estimate.- 6 A Posteriori Error Estimates for Discontinuous Approximations.- 6.1 The Case of a Finite Number of Smooth Discontinuity Curves.- 6.2 The Case of a Piecewise-Constant Approximation.- 7 Concluding Remarks.- 7.1 Some Bibliographical Remarks.- 7.2 Open Problems.- Notes on Accuracy and Stability of Algorithms in Numerical Linear Algebra.- 1 Introduction.- 2 Preliminaries.- 3 Symmetric Indefinite Systems.- 3.1 Block LDLT Factorization.- 3.2 Aasen’s Method.- 3.3 Aasen’s Method Versus Block LDLT Factorization.- 3.4 Tridiagonal Matrices.- 4 QR Factorization and Constrained Least Squares Problems.- 4.1 Householder QR Factorization.- 4.2 The Constrained Least Squares Problem.- 5 The Singular Value Decomposition and Jacobi’s Method.- 5.1 Jacobi’s Method.- 5.2 Relative Perturbation Theory.- 5.3 Error Analysis.- 5.4 Other Issues.- Numerical Analysis of Semilinear Parabolic Problems.- 1 The Continuous Problem.- 2 Local a Priori Error Estimates.- 2.1 The Spatially Semidiscrete Problem.- 2.2 A Completely Discrete Scheme.- 3 Shadowing—First Approach.- 3.1 Linearization.- 3.2 Exponential Dichotomies.- 3.3 Shadowing.- 4 A Posteriori Error Estimates.- 4.1 The Error Equation.- 4.2 Local Estimates of the Residual.- 4.3 A Global Error Estimate.- 5 Shadowing—Second Approach.- Integration Schemes for Molecular Dynamics and Related Applications.- 1 Introduction.- 2 Newtonian Dynamics.- 2.1 Properties.- 2.2 The Liouville Equation.- 3 The Leapfrog Method.- 3.1 Derivation.- 3.2 Small-?t Analysis.- 3.3 Linear Analysis.- 3.4 Small-Energy Analysis.- 3.5 Effective Accuracy and Post-Processing.- 3.6 Finite-Precision Effects.- 4 Other Methods.- 4.1 A Family of Methods.- 4.2 Quest for Accuracy and Stability.- 4.3 The Case for Symplectic Integration.- 5 Multiple Time Steps.- 5.1 The Verlet-I/r-RESPA/Impulse MTS Method.- 5.2 Partitioning of Interactions.- 5.3 Efficient Implementation.- 5.4 Mollified Impulse MTS Methods.- 6 Constrained Dynamics.- 6.1 Discretization.- 6.2 Solution of the Nonlinear Equations.- 7 Constant-Temperature and Constant-Pressure Ensembles.- 7.1 Constant-Temperature Ensembles.- 7.2 Constant-Pressure Ensembles.- 8 Shastic Dynamics.- 8.1 Langevin Dynamics.- 8.2 Brownian Dynamics.- A Lie Series and the BCH Formula.- B Shastic Processes.- 2.1 Wiener Processes.- 2.2 The Ito Integral.- 2.3 Shastic Differential Equations.- 2.4 The Fokker—Planck Equation.- 2.5 The Ito Formula.- 2.6 Weak Ito—Taylor Expansions.- Numerical Methods for Bifurcation Problems.- 1 Introduction.- 2 Examples.- 3 Newton’s Method and the Implicit Function Theorem.- 3.1 Newton’s Method for Systems.- 3.2 The Implicit Function Theorem.- 3.3 Two Examples.- 4 Computation of Solution Paths.- 4.1 Keller’s Pseudo-Arclength Continuation [25].- 4.2 Block Elimination.- 5 The Computation of Fold (Turning) Points.- 5.1 Analysis of Fold Points.- 5.2 Numerical Calculation of Fold Points.- 6 Bifurcation from the Trivial Solution.- 6.1 Scalar Case.- 6.2 n-Dimensional Case.- 7 Bifurcation in Nonlinear ODEs.- 7.1 The Shooting Method for ODEs.- 7.2 Analysis of Parameter Dependent ODEs.- 7.3 Calculation of Fold Points in ODEs Using Shooting.- 8 Hopf Bifurcation.- 8.1 Calculation of a Hopf Bifurcation Point.- 8.2 The Detection of Hopf Bifurcations in Large Systems.- Spectra and Pseudospectra.- 1 Eigenvalues.- 2 Pseudospectra.- 3 A Matrix Example.- 4 An Operator Example.- 5 History of Pseudospectra.

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