Geometry at the ULB

differential geometry at the Université libre de Bruxelles

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Felix Schlenk to speak in the geometry seminar, 11 June

Felix Schlenk (Université de Neuchâtel, Switzerland) will speak in the geometry seminar on Tuesday 11 June, at 11.30am in the Salle de Profs. Felix’s title and abstract are to be announced.

Matthias’s title is Manning’s inequality for Finsler and Reeb flows and his abstract is below.

I will explain parts of recent work with Marcelo Alves and Alberto Abbondandolo, in which we study entropy rigidity for Reeb flows and Finsler flows. An important result in the study of the topological entropy for geodesic flows is Manning’s inequality, that bounds the topological entropy from below by the volume entropy.
I will discuss two ways to extend this result to Finsler and Reeb flows.

Getting here

The department of mathematics is in building NO, on the Campus de la Plaine, of the Université libre de Bruxelles. The geometry group is on the 7th floor. This map shows NO, as well as the metro station Delta and entrance 2, which is right by the stop for the number 71 and 72 buses. The number 95 also stops a short walk from the department. See the STIB website for more information on public transport in Brussels.

Image credits

Polished ammonite fossil, by Kara Stenberg, Creative Commons licence CC BY-NC 2.0.

Model of 3D projection of a 120-cell, by Edmund Harriss.

The root system of the exceptional Lie algebra E8. By Jared Tarbell, Creative Commons Licence CC BY 2.0.