Oberseminar p-adische Arithmetik: Analytic stacks: Vladyslav Shram: Solid abelian groups

Tee-Seminar: Hendrik Van Maldeghem (Universität Gent, Belgien): Generalised dualities and Segre varieties

Jacques Tits generalised the notion of a "polarity" in order to describe all embeddable polar spaces. We further extend it to the notion of "generalised duality...

Oberseminar Differentialgeometrie: Renan Assimos (Universität Hannover), Vortrag: tba

Romain Panis, Univ. Geneva: The long-range Phi^4 model on Z^d (Oberseminar Mathematische Stochastik)

We study the (discrete) Phi^4 model on Z^d with algebraically decaying long-range interactions. This model is the natural discrete analogue of the fractional co...

Mittagsseminar zur Arithmetik: Johannes Anschütz (Bonn): Pro-etale cohomology of rigid-analytic spaces

Pro-etale cohomology of rigid-analytic spaces with Q_p-coefficients has some surprising features: it is not A^1-invariant and no general finiteness theorems ove...

Pascal Millet (Ecole Polytechnique, CMLS): Leading-order term expansion for the Teukolsky equation on subextremal Kerr black holes / Oberseminar Topics in General Relativity

The study of wave propagation on black hole spacetimes has been an intense field of research in the past decades. This interest has been driven by the stability...

Théophile Dolmaire (Universität Bonn): Inelastic collapse of three particles in dimension d '?' 2

The Boltzmann equation can be derived rigorously from a system of elastic hard spheres (Lanford?s theorem, [11], [8]). Kinetic theory may also be fruitfully use...

Siegfried Echterhoff: Simple subquotients of group C*-algebras of connected groups - a theorem of Poguntke revisited. Oberseminar C*-Algebren.