Herwig Hauser (Univ. of Vienna, Austria) 
The intricacies of algebraic power series

20180207 
Alfonso Tortorella (CMUC, Univ. Coimbra) 
Deformations of coisotropic submanifolds in Jacobi manifolds

20171011 
Daniel Marques Pinto (CMUC, University of Coimbra) 
Nonorientable hypermaps

20170613 
Ricardo Campos (ETH Zürich, Switzerland) 
Graph complexes and configuration spaces of points

20170419 
João Nuno Mestre (CMUC/Univ. Coimbra) 
The deformation cohomology of a Lie groupoid and applications to rigidity

20170210 