Universität zu Köln

Klawonn, Axel ORCID: 0000-0003-4765-7387, Kühn, Martin Joachim ORCID: 0000-0002-0906-6984 and Rheinbach, Oliver (2018). A closer look at local eigenvalue solvers for adaptive FETI-DP and BDDC. Technical Report.

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Abstract

Adaptive coarse spaces for domain decomposition methods are an active area of research to make iterative domain decomposition methods robust with respect to large discontinuities in the material parameters or almost incompressible elasticity. In order to make their use feasible for applications, the computational overhead of the adaptive methods has to be reduced while maintaining the robustness. Since the solution of the local eigenvalue problems is expensive, also the iterative eigenvalue solvers are considered in detail and potential improvements are presented.

Item Type:	Preprints, Working Papers or Reports (Technical Report)
Creators:	Creators Email ORCID ORCID Put Code Klawonn, Axel axel.klawonn@uni-koeln.de orcid.org/0000-0003-4765-7387 UNSPECIFIED Kühn, Martin Joachim martin.kuehn@uni-koeln.de orcid.org/0000-0002-0906-6984 UNSPECIFIED Rheinbach, Oliver oliver.rheinbach@math.tu-freiberg.de UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-90205
Series Name at the University of Cologne:	Technical report series. Center for Data and Simulation Science
Volume:	2018,11
Date:	16 November 2018
Language:	English
Faculty:	Central Institutions / Interdisciplinary Research Centers
Divisions:	Weitere Institute, Arbeits- und Forschungsgruppen > Center for Data and Simulation Science (CDS)
Subjects:	Mathematics Technology (Applied sciences)
Uncontrolled Keywords:	Keywords Language adaptive coarse spaces English FETI-DP English BDDC UNSPECIFIED
URI:	http://kups.ub.uni-koeln.de/id/eprint/9020