FB 6 Mathematik/Informatik

Institut für Mathematik

Navigation und Suche der Universität Osnabrück



WS 2017/2018

07.11.2017 um 14:15 Uhr in 69/E15:

Martin Frankland (Universität Osnabrück)

Towards the dual motivic Steenrod algebra in positive characteristic

14.11.2017 um 14:15 Uhr in 69/E15:

Manfred Stelzer (Universität Osnabrück)

Andre-Quillen cohomology and simplicial coalgebras

21.11.2017 um 14:15 Uhr in 69/E15:

Federico Binda (Universität Regensburg)


28.11.2017 um 14:15 Uhr in 69/E15:

Dr. Peter Arndt (Heinrich-Heine-Universität Düsseldorf)

From GAG to NAG: On Durov's and Haran's approaches to F1-geometry

I will give a quick introduction to Durov's "Generalized Algebraic Geometry" (GAG) and Haran's "Non-additive Geometry" (NAG), both of which are generalizations of algebraic geometry in which one glues more general objects than rings. I will present the compactifications of Spec Z that both authors construct. There is an inclusion from Durov's into Haran's F1-schemes, known to both authors. I will construct a left adjoint to this inclusion and compute it for Haran's compactification of Spec Z.

05.12.2017 um 14:15 Uhr in 69/E15:

Glen Wilson (University of Oslo)


12.12.2017 um 14:15 Uhr in 69/E15:

Paul Arne Østvær (University of Oslo)


19.12.2017 um 14:15 Uhr in 69/E15:

Arun Kumar (Universität Osnabrück)


16.01.2018 um 14:15 Uhr in 69/E15:

Toan M. Nguyen (Universität Osnabrück)