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Department of Mathematics

Karlsruhe Institute of Technology
D-76128 Karlsruhe
Germany
Tel.: +49 721 608-43800

Weihnachtsworkshop on Geometry and Number Theory 2019

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 be from Wednesday, December 18 until Friday, December 20.
It will take place at KIT in Karlsruhe.

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Here is the list of confirmed speakers:

Tobias Columbus (Saarbrücken): Composition in Prederivators
Vincent Delecroix (Bordeaux/Bonn): Dynamics of measured foliations on Riemann surfaces of infinite type
Marvin Hahn (Frankfurt): Mustafin models of plane curves and syzygy bundles
Christoph Karg (Karlsruhe): Watching infinite regular translation surfaces from very, very far
Shun Kumagai (Tohoku Univ.): A characterization of the Veech group of a flat structure with two finite Jenkins-Strebel directions
Marius Leonhardt (Cambridge): Plectic phenomena on Hilbert modular varieties
Frank Loose (Tübingen): Three-dimensional geometries without compact quotients
Oliver Lorscheid (Rio de Janeiro/Bonn): Towards a cohomological understanding of the tropical Riemann Roch theorem
Duc-Manh Nguyen (Bordeaux): Existence of periodic trajectories through a given point on translation surfaces
Cecilia Salgado (Rio de Janeiro/Bonn): Mordell-Weil rank jumps and the Hilbert property
Markus Stroppel (Stuttgart): 8,7,6,5 - using octonions to understand classical groups
Andrea Thevis (Saarbrücken): Strata and Veech groups of p-origamis
Jonathan Zachhuber (Frankfurt): Euler Characteristics of Strata
Ferdinando Zanchetta (Southampton): Operations on higher algebraic K-theory via unstable methods

Programme

Wednesday, December 18

9:30Tee in the Mathematikgebäude, Room 1.058
10:00 – 11:00 Jonathan Zachhuber (Frankfurt) Euler Characteristics of Strata
11:15 – 12:15Vincent Delecroix (Bordeaux/Bonn) Dynamics of measured foliations on Riemann surfaces of infinite type
Lunch break
14:00 – 15:00 Duc-Manh Nguyen (Bordeaux) Existence of periodic trajectories through a given point on translation surfaces
15:15 – 16:15 Andrea Thevis (Saarbrücken) Strata and Veech groups of p-origamis
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 in Room 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 Tobias Columbus (Saarbrücken) Composition in Prederivators
17:00 – 18:00 Frank Loose (Tübingen) Three-dimensional geometries without compact quotients

Friday, December 20

9:00 – 10:00 Marvin Hahn (Frankfurt): Mustafin models of plane curves and syzygy bundles
10:30 – 11:30 Christoph Karg (Karlsruhe): Watching infinite regular translation surfaces from very, very far
11:45 – 12:45 Oliver Lorscheid (Rio de Janeiro/Bonn): Towards a cohomological understanding of the tropical Riemann Roch theorem

There are short abstracts for the talks.

Organizers


Archive

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The “Weihnachtsworkshop” has been held anually since 2003. Here you can find the programmes of the past years: