Séminaire de Géométrie Complexe

$\mathbb C^*$-actions and birational geometry

by Gianluca Occhetta (Trento)

salle 207 bâtiment 1R2 (Institut de Mathématiques de Toulouse)

salle 207 bâtiment 1R2

Institut de Mathématiques de Toulouse


In this talk I will show how some special actions of $\mathbb C^*$ on smooth projective varieties are related to birational transformations between the sink and the source of the action, discussing examples and related problems.


This is a joint work with Jaroslaw Wisniewski, Luis E. Solá Conde and Eleonora A. Romano.