%0 Electronic Article %A Lehrenfeld, Christoph %A Reusken, Arnold %T Optimal preconditioners for Nitsche-XFEM discretizations of interface problems %M RWTH-2021-01721 %P 20 Seiten %D 2014 %F PUB:(DE-HGF)25 %9 Preprint %R 10.48550/ARXIV.1408.2940 %U https://publications.rwth-aachen.de/record/812186