Geometry at the ULB

differential geometry at the Université libre de Bruxelles

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Éveline Legendre to speak in the geometry seminar 26/01/2016

Éveline Legendre (of the Université de Toulouse) will speak at the geometry seminar on 26th January 2016. Her title is “The Hilbert-Einstein functional and the Sasaki-Futaki invariant”. Her abstract is below. The talk will take place at 2pm, in the Salle des Profs, 9th floor of building NO.

I will show how the Hilbert-Einstein functional detects the Reeb vector fields having a vanishing transversal Futaki invariant and so that it is an obstruction to the existence of constant scalar curvature Sasaki metrics. We also discuss the relation of this functional with the sasakian K-stability defined by Collins–Szekelyhidi.

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.