The schedule of the conference is available as a PDF-document. Thursday night From 7 pm: Informal get together at "Alte Nikolaischule" The restaurant "Alte Nikolaischule" is located in the inner city, just beside Nikolai church. You can find us either in the back room or outside when the wheather is fine. The address is Nikolaikirchhof 2 and you may consult this map. Friday, June 20 9.00 - 9.50 Rüdiger Göbel (Essen): The wonderful and endless story of E-rings compressed to 45 minutes Coffee 10.20 - 11.05 Markus Lohrey (Leipzig): Rational subsets in finitely generated groups 11.10 - 11.55 Ales Drapal (Prague): Buchsteiner loops Lunch 13.45 - 14.15 Tomas Kepka and Petr Nemec (Prague): Subgroups, subsemigroups, subrings, and subsemirings of rational numbers 14.20 - 14.50 Stefan Friedenberg (Essen): A characterization of Ext(A,H) for countable abelian groups A and H Coffee 15.10 - 15.40 Christian Müller (Essen): Von Neumann regular endomorphism rings 15.45 - 16.15 Jasmin Matz (Essen): Zassenhaus rings Coffee 16.35 - 17.05 Dietrich Kuske (Leipzig): Hamiltonian cycles are much more difficult than Eulerian cycles 17.10 - 17.55 Manfred Droste (Leipzig): Random constructions imply symmetry 19.30 Dinner at "Auerbachs Keller" We have reserved tables at the restaurant "Auerbachs Keller". It is located in the Mädlerpassage near to the old town hall. Here is a map. Saturday, June 21 9.00 - 9.30 Ahmet Arikan (Ankara): On certain perfect p-groups 9.35 - 10.05 Nadir Trabelsi (Setif): On minimal non-PC-groups Coffee 10.30 - 11.10 Lutz Strüngmann (Essen): Pure subgroups of completely decomposable groups - an algorithmic approach 11.15 - 11.50 Wolfgang Herfort (Wien): Finitely generated pro-p groups containing a free pro-p subgroup of finite index 12.45 Lunch at "Panorama" restaurant We have reserved tables at the restaurant "Panorama". It is located in the Panorama tower of the regional TV station MDR. The tower cannot be missed but here is a map.