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Adaptive Finite Element Methods for Differential Equations (Paperback, Softcover reprint of the original 1st ed. 2003)
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Adaptive Finite Element Methods for Differential Equations (Paperback, Softcover reprint of the original 1st ed. 2003)
Series: Lectures in Mathematics. ETH Zurich
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These Lecture Notes have been compiled from the material presented
by the second author in a lecture series ('Nachdiplomvorlesung') at
the Department of Mathematics of the ETH Zurich during the summer
term 2002. Concepts of 'self adaptivity' in the numerical solution
of differential equations are discussed with emphasis on Galerkin
finite element methods. The key issues are a posteriori er ror
estimation and automatic mesh adaptation. Besides the traditional
approach of energy-norm error control, a new duality-based
technique, the Dual Weighted Residual method (or shortly D WR
method) for goal-oriented error estimation is discussed in detail.
This method aims at economical computation of arbitrary quantities
of physical interest by properly adapting the computational mesh.
This is typically required in the design cycles of technical
applications. For example, the drag coefficient of a body immersed
in a viscous flow is computed, then it is minimized by varying
certain control parameters, and finally the stability of the
resulting flow is investigated by solving an eigenvalue problem.
'Goal-oriented' adaptivity is designed to achieve these tasks with
minimal cost. The basics of the DWR method and various of its
applications are described in the following survey articles: R.
Rannacher [114], Error control in finite element computations. In:
Proc. of Summer School Error Control and Adaptivity in Scientific
Computing (H. Bulgak and C. Zenger, eds), pp. 247-278. Kluwer
Academic Publishers, 1998. M. Braack and R. Rannacher [42],
Adaptive finite element methods for low Mach-number flows with
chemical reactions.
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