Department of Mathematics
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Department of Mathematics
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Institute of Algebra and Geometry
Research Group Number Theory and Algebraic Geometry
Prof. Dr. Frank Herrlich

Once a year in the last week before Christmas the Karlsruher Weihnachtsworkshop takes place with talks from geometry and number theory.

The Weihnachtsworkshop 2019 will take place from Wednesday, December 18 to Friday, December 20 in Karlsruhe.

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Programme

Wednesday, December 18

9:30Tee im Mathematikgebäude, Raum 1.058
10:00 – 11:00 Jonathan Zachhuber (Frankfurt) Euler Characteristics of Strata
11:15 – 12:15Duc-Manh Nguyen (Bordeaux) Existence of periodic trajectories through a given point on translation surfaces
Lunch break
14:00 – 15:00 Vincent Delecroix (Bordeaux/Bonn) Dynamics of measured foliations on Riemann surfaces of infinite type
15:15 – 16:15 Tobias Columbus (Saarbrücken) Composition in Prederivators
16:45 – 17:45 Shun Kumagai (Tohoku Univ.) A characterization of the Veech group of a flat structure with two finite Jenkins-Strebel directions
ab 19:00 Weihnachtsfeier im Raum 1.067

Thursday, December 19

8:45 – 9:45Ferdinando Zanchetta (Southampton) Operations on higher algebraic K-theory via unstable methods
10:15 – 11:15 Marius Leonhardt (Cambridge) Plectic phenomena on Hilbert modular varieties
11:30 – 12:30Cecilia Salgado (Rio de Janeiro/Bonn) Mordell-Weil rank jumps and the Hilbert property
Lunch break
14:15 – 15:15 Markus Stroppel (Stuttgart) 8,7,6,5 - using octonions to understand classical groups
15:45 – 16:45 Christoph Karg (Karlsruhe): Watching infinite regular translation surfaces from very, very far
17:00 – 18:00 Martin Möller (Frankfurt): Volumes of strata of abelian and quadratic differentials

Friday, December 20

9:00 – 10:00 Marvin Hahn (Frankfurt): Mustafin models of plane curves and syzygy bundles
10:30 – 11:30 Andrea Thevis (Saarbrücken) Strata and Veech groups of p-origamis
11:45 – 12:45 Oliver Lorscheid (Rio de Janeiro/Bonn): Towards a cohomological understanding of the tropical Riemann Roch theorem

For all talks there are short abstracts.

Organizers