The birational classification of projective manifolds was developed by F. Severi, R. Hall and D. Lie

Lie groupoids are natural generalizations of Lie groups. In the world of Lie groups it is well-known

In this talk, a proof of a conjecture of B. Shoikhet is presented, which gives an alternative appro

We will introduce Abelian and non-Abelian gerbes, from the point of view of Lie groupoids, and conne

The moduli space $Hom(F,G)/G$ of completely reducible representations of a finitely generated group

We give a notion of stability on the infinite Grassmannian Gr(k((z))^{\oplus r}) by the action of th

Generalizamos a definição de equação diferencial "sem parametro acessorios" ao caso de varias va

A holonomia e uma noção intrinseca aos campos de vectores, em tempo complexo, que admitem uma sepa

Em dimensão complexa 2, singularidades de fluxos holomorfos (equivalentemente singularidades de cam