Linear and Nonlinear Multiscale Solution Methods (PhD)

UNIVERSITÀ DELLA SVIZZERA ITALIANA
A Mendrisio (Svizzera)

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  • Corso
  • Mendrisio (Svizzera)
Descrizione

Descrizione In this course, we present the state of the art for linear as well as nonlinear multilevel and multigrid methods. The solution of large linear and nonlinear systems of equations is one of the most important tasks in numerical simulation. Since standard solution methods do not scale optimally , alternative solution strategies have been developed during the last decades. In particular multilevel or multiscale solution strategies have been developed, which are often employed due to their high efficiency. Prominent examples are multilevel or domain decomposition methods for linear elliptic problems, In this course, we start from well known subspace correction methods for linear problems and proceed to more recent developments as are nonlinear multigrid and monotone multigrid. Finally, we will consider (recursive) trust-region methods and their application to minimization problems in computational mechanics. For all methods, we will also discuss their parallelisation.

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Mendrisio
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Programma

Descrizione

In this course, we present the state of the art for linear as well as nonlinear multilevel and multigrid methods. The solution of large linear and nonlinear systems of equations is one of the most important tasks in numerical simulation. Since standard solution methods do not scale optimally , alternative solution strategies have been developed during the last decades. In particular multilevel or multiscale solution strategies have been developed, which are often employed due to their high efficiency. Prominent examples are multilevel or domain decomposition methods for linear elliptic problems, In this course, we start from well known subspace correction methods for linear problems and proceed to more recent developments as are nonlinear multigrid and monotone multigrid. Finally, we will consider (recursive) trust-region methods and their application to minimization problems in computational mechanics. For all methods, we will also discuss their parallelisation.

REFERENCES

  • A Multigrid Tutorial; William L. Briggs, Van Emden Henson, and Steve F. McCormick; Second Edition, SIAM, 2000 (book home page), ISBN 0-89871-4621.
  • Multigrid Methods and Applications; Wolfgang Hackbusch; Springer, 1985.
  • An Introduction to Multigrid Methods; Pieter Wesseling; Corrected Reprint. Philadelphia: R.T. Edwards, Inc., 2004. ISBN 1-930217-08-0.
  • Matrix computations; Gene H. Golub and Charles F. Van Loan.
  • Domain Decomposition Methods; Toselli, Widlund
  • Nocedal Wright, Numerical Optimisation;
  • Trust-Region Methods; Conn Gould Toint.
  • Practical Methods of Optimisation; R. Fletcher.
  • Numerical Optimisation, Series: Springer Series in Operations Research and Financial Engineering, Nocedal, Jorge, Wright, Stephen 2nd ed., 2006, XXII, 664 p. 85 illus., www.springer.com/mathematics/book/978-0-387-30303-1


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