Weighted Poincaré inequalities and applications in domain decomposition


Pechstein, C. and Scheichl, R., 2010. Weighted Poincaré inequalities and applications in domain decomposition. In: Domain Decomposition Methods in Science and Engineering XIX.Vol. 78. Heidelberg: Springer, pp. 197-204.

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Poincare´ type inequalities play a central role in the analysis of domain decomposition and multigrid methods for second-order elliptic problems. However, when the coefficient varies within a subdomain or within a coarse grid element, then standard condition number bounds for these methods may be overly pessimistic. In this short note we present new weighted Poincare´ type inequalities for a class of piecewise constant coefficients that lead to sharper bounds independent of any possible large contrasts in the coefficients.


Item Type Book Sections
CreatorsPechstein, C.and Scheichl, R.
DepartmentsFaculty of Science > Mathematical Sciences
Research Centres
ID Code27662


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