- Mario Daberkow (TU Berlin)
- Comp. number theory
- 20th Jul 1995 to 20th Nov 1995
- Lassina Dembele (Warwick)
- Arithmetic Geometry
- 16th Aug 2007 to 16th Sep 2007
- 1st Oct 2008 to 15th Nov 2008
- 19th Sep 2016 to 14th Oct 2016
- Alla Detinko (UCG)
- Comp. group theory
- 7th May 2012 to 11th May 2012
- Heiko Dietrich (Monash)
- Representation Theory
- 28th Oct 2013 to 1st Nov 2013
- Tim Dokchitser (Bristol)
- L-Functions
- 25th Oct 2004 to 4th Dec 2004
- 8th Aug 2006 to 17th Sep 2006
- 24th Aug 2008 to 28th Sep 2008
- 20th Aug 2010 to 27th Sep 2010
- 1st Oct 2014 to 5th Dec 2014
- Christopher Doris (Bristol)
- Number Theory
- 1st Feb 2020 to 28th Feb 2020
