Research stays

  1. Department of Mathematical Sciences, Florida Atlantic University (USA), 01.02.2019--14.02.2019,
  2. Department of Mathematical Sciences, Florida Atlantic University (USA), 06.04.2014--28.04.2014,
  3. Oberwolfach: Research in Pairs (Germany), with Markus Schmidmeier, 05.05.2013--18.05.2013,
  4. Department of Mathematical Sciences, Florida Atlantic University (USA), 01.03.2011--15.03.2011, (supported by FAU and by Research Grant No. N N201 269 135 of Polish Ministry of Science and High Education)
  5. Faculty of Mathematics, Bielefeld University (Germany), 02.2010, (supported by SFB),
  6. Faculty of Mathematics, Bielefeld University (Germany), 01.09.2008--29.09.2008, (supported by SFB),
  7. Faculty of Mathematics, Bielefeld University (Germany), 02.11.2005--29.11.2005, (supported by SFB),
  8. Faculty of Mathematics, Bielefeld University (Germany), 01.10.2004--20.12.2004, (supported by Lie-Grits),