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February 28, 2023 By GeometryAdmin

Ursula Hamenstädt to speak in the geometry seminar 07/03/2023

Ursula Hamenstädt (Bonn) will speak in the geometry seminar on 07/03/2023 at 2pm, in the Salle des Profs, 9th floor of building NO. Ursula’s title is “Stability of Einstein metrics and applications” and her abstract is below.

We explain how to use an implicit function theorem to construct an Einstein metric
on a closed manifold near a metric which is almost hyperbolic in a suitable sense, highlighting geometric mechanism of the argument. Applications include a new  proof of hyperbolization of closed 3-manifolds of large Heegaard distance. This is based on joint work with Frieder Jaeckel.

Filed Under: geometry seminar news

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Address

Département de mathématiques
Université libre de Bruxelles CP 218
Boulevard du Triomphe, Bruxelles 1050,
Belgium

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 page has a map of the campus as well as information on how to reach it via public transport. 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.

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.

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