Horospherical Fano varieties

I did my PhD in the institut Fourier, in Grenoble, with Michel Brion.
I defended it the 27th of October 2006, in front of the following committee :

Victor BATYREV Laurent BONAVERO     Michel BRION Olivier DEBARRE Laurent MANIVEL

Universität Tübingen, Germany     Institut Fourier, Grenoble Institut Fourier, Grenoble IRMA, Strasbourg Institut Fourier, Grenoble

Referee Examiner Advisor Referee et president Examiner

Here is my thesis.