On some theories of algebraic groups with a predicate for a subgroup
Donnerstag, 5.11.09, 09:00-10:00, Raum 318, Eckerstr. 1
Eklof's Γ-invariant and the structure of Ext in certain models of set theory
Donnerstag, 12.11.09, 09:00-10:00, Raum 318, Eckerstr. 1
Eklof's Γ-invariant and the structure of Ext in certain models of set theory
Donnerstag, 19.11.09, 09:00-10:00, Raum 318, Eckerstr. 1
Recurrent double sequences over finite sets
Donnerstag, 26.11.09, 09:00-10:00, Raum 318, Eckerstr. 1
The diamond principle is a cardinal statement
Donnerstag, 3.12.09, 09:00-10:00, Raum 318, Eckerstr. 1
Amenable groups
Donnerstag, 10.12.09, 09:00-10:00, Raum 318, Eckerstr. 1
On possible values of Ext(H,W) for torsion free groups W
Donnerstag, 17.12.09, 09:00-10:00, Raum 318, Eckerstr. 1
For abelian groups A and B, the group Ext(A,B) has a purely algebraic definition. However, S. Shelah showed, when answering the Whitehead conjecture, that certain properties of the functor Ext(-,B) depend on the underlying set theory. Under the assumption V=L, it is konwn that, for an\nabelian group A and a torsion free group T, Ext(A,T) is either 0 or uncountable. In this talk, we examine which countable values of Ext(-,T) can be realized in forcing extensions of L, for T in a large class of countable torsion free groups.
Model completion of varieties of Heyting algebras
Donnerstag, 21.1.10, 09:00-10:00, Raum 318, Eckerstr. 1
Model completion of varieties of Heyting algebras II
Donnerstag, 28.1.10, 09:00-10:00, Raum 318, Eckerstr. 1
Model theory of some exponential maps
Donnerstag, 4.2.10, 09:00-10:00, Raum 318, Eckerstr. 1
Locally modular strongly minimal sets
Donnerstag, 11.2.10, 09:00-10:00, Raum 318, Eckerstr. 1
Die p-torsion abelscher Varietäten und endliche Gruppenschemata
Donnerstag, 25.2.10, 11:15-12:15, Raum 318, Eckerstr. 1
Die p-torsion abelscher Varietäten und endliche Gruppenschemata II
Donnerstag, 11.3.10, 09:00-10:00, Raum 318, Eckerstr. 1
Gemeine Körper
Donnerstag, 18.3.10, 09:00-10:00, Raum 318, Eckerstr. 1