Korrektur: Der Vortrag findet am Donnerstag, dem 29.06.17 um 13:00 Uhr s.t. im Raum 5.002 WE6 statt. LG, Jose On 06/27/2017 12:42 PM, Jose Fonseca wrote:
Liebe Kollegen,
Mein Gast Juan Calvo (Czech Academy of Sciences) wird zum Thema
'Virtual Elements and Domain Decomposition Methods'
vortragen. Der Vortrag findet am Donnerstag, dem 29.02 um 13:00 Uhr s.t. im Raum 5.002 WE6 statt. Anbei der Abstract zum Vortrag.
Mit freundlichen Grüßen,
Jose
Abstract
We present a new extension operator for virtual coarse spaces which can be used in domain decomposition methods for nodal elliptic problems in 2D. In particular, we consider a two-level overlapping Schwarz algorithm. The bound for the condition number of the preconditioned system is similar to previous studies based on discrete harmonic extension, with the advantage that the new operator saves computational time and it is suitable for general irregular subdomains. Some numerical experiments that verify the result are shown.
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