Original title: Different approaches to interface weights in the BDDC method in 3D
Authors: Čertíková, M. ; Šístek, Jakub ; Burda, P.
Document type: Papers
Conference/Event: Programs and Algorithms of Numerical Mathematics /17./, Dolní Maxov (CZ), 2014-06-08 / 2014-06-13
Year: 2015
Language: eng
Abstract: In this paper, we discuss the choice of weights in averaging of local (subdomain) solutions on the interface for the BDDC method (Balancing Domain Decomposition by Constraints). We try to find relations among different choices of the interface weights and compare them numerically on model problems of the Poisson equation and linear elasticity in 3D. Problems with jumps in coefficients of material properties are considered and both regular and irregular interfaces between subdomains are tested.
Keywords: BDDC; coefficient jumps; interface weights
Project no.: GA14-02067S (CEP)
Funding provider: GA ČR
Host item entry: Programs and algorithms of numerical mathematics 17. Proceedings of seminar, ISBN 978-80-85823-64-6
Note: Související webová stránka: http://hdl.handle.net/10338.dmlcz/702662

Institution: Institute of Mathematics AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0246498

Permalink: http://www.nusl.cz/ntk/nusl-187446


The record appears in these collections:
Research > Institutes ASCR > Institute of Mathematics
Conference materials > Papers