Location: room 611 of the Wiskunde building (campus De Uithof) Budapestlaan 6, Utrecht.

Date and time: Thursday, February 25, 2010 15:30-16:30. The lecture is preceded by coffee, tea, and cookies from 15.00 to 15.30 hour in the same room.

Complex hyperbolic disc bundles


Carlos Grossi

(Bonn)

Abstract: We describe a series of new examples of complex hyperbolic disc bundles (over closed surfaces) with focus on the interplay between topology and geometry. For example, we will explain how the Euler number of a bundle can be obtained from certain `fractional Euler quantities.' The developed tools allow to build a trivial bundle carrying complex hyperbolic structure and are also applicable to the real hyperbolic case.


This is part of a joint work with Sasha Ananin (UNICAMP, Brazil) and Nikolay Gusevskii (UFMG, Brazil).

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