On selection of interface weights in domain decomposition methods

0391456 - MÚ 2014 RIV CZ eng C - Conference Paper (international conference)
Čertíková, M. - Šístek, Jakub - Burda, P.
On selection of interface weights in domain decomposition methods.
Programs and Algorithms of Numerical Matematics 16. Prague: Institute of Mathematics, Academy of Sciences of the Czech Republic, 2013 - (Chleboun, J.; Segeth, K.; Šístek, J.; Vejchodský, T.), s. 35-44. ISBN 978-80-85823-62-2.
[Programy a algoritmy numerické matematiky /16./. Dolní Maxov (CZ), 03.06.2012-08.06.2012]
Institutional support: RVO:67985840
Keywords : BDDC method
Subject RIV: BA - General Mathematics
http://users.math.cas.cz/~panm/Panm16/proceedings_final/035_certikova.pdf

Different choices of the averaging operator within the BDDC method are compared on a series of 2D experiments. Subdomains with irregular interface and with jumps in material coefficients are included into the study. Two new approaches are studied along three standard choices. No approach is shown to be universally superior to others, and the resulting recommendation is that an actual method should be chosen based on properties of the problem.
Permanent Link: http://hdl.handle.net/11104/0220499