Academic Visits
Ankara University, Turkey
- 2005 (January, August)
- 2006 (July)
- 2007 (February, July)
- 2008 (January, August)
- 2009 (January, March, May, June-September, December)
- 2010 (July, December)
- 2011 (January, February, April, June, November)
- 2012 (February, May)
- 2015 (November)
- 2016 (December)
Cardiff University, Wales, United Kingdom, School of Mathematics
- 2002 (February, November)
- 2004 (January)
- 2005 (December)
- 2006 (April - May)
- 2007 (January, July)
- 2008 (April)
- 2009 (May, December)
Alabama University, USA
- 2004 (October)
- 2005 (November)
Harran University, Urfa, Turkey