Guests
November 2017
- Cun-Quang Zhang, West Virginia University, Morgantown, USA
February 2017
- Miguel A. Fiol, Universitat Politècnica de Catalunya, Barcelona, Spain
October 2016
- Edita Rollová, University of West Bohemia, Pilsen, Czech Republic
October 2015
- Edita Rollová, University of West Bohemia, Pilsen, Czech Republic
November 2014
- Ingo Schiermeyer, Institut für Diskrete Mathematik & Algebra, Technische Universität Bergakademie Freiberg
- Guiseppe Mazzuoccolo, UNIMORE Università degli Studi die Modena e Reggio Emilia, Modena, Italy
- Gabriel Semanisin, P.J. Šafarik University Košice, Slovakia
January - February 2014
- Edita Rollová, University of West Bohemia, Pilsen, Czech Republic
March - May 2013
- Barbora Candráková, Comenius Universität Bratislava, Slowakia
June 2012
- Xuding Zhu, Zheijang Normal University, Jinhua, China
July 2009 - June 2010
- Vahan V. Mkrtchyan, Yerevan State University, Yerevan, Armenia (fellowship holder of the Heinrich-Hertz Stiftung)