Apresentamos algumas propriedades dos bialgebróides quasi-Lie e quasi-Jacobi, analisando nomeadamen

A rational ruled surface is a P^1 bundle over P^1. The infinitesimal deformation theory of these sur

Sem assumir conhecimento previo do princípio-h, explicar-se-á a sua aplicação para provar a exis

The space of representations of the fundamental group of a surface into a Lie group is a natural obj

Monotone Lagrangian submanifolds are important objects in symplectic geometry but unfortunately we l

A conjecture of Victor Ivrii (1980) says that in every billiard with smooth boundary the set of peri

Uma equação diferencial complexa e localmente dada por um campo de vectores da forma F(x,y)d/dx+G(

Rigidity of Lagrangian intersections play a fundamental role in symplectic geometry and topology. In

I will present some recent results on symplectic invariants concerning the possibility of embedding