I'm teaching at the Department of Mathematics of University of Beira Interior, in Covilhã, Portugal.

My research interests are Dynamical systems, Ergodic theory (non-uniformly expanding maps; SRB measures, stochastic stability; random dynamical systems,...) and, recently, Ramsey theory and Tiling Spaces.

 I'm a member of CMUBI (Center of Mathematics at University of Beira Interior).


old stuff:


»» Visiting UFBA (Salvador, Bahia, Brasil) from August, 25 until September, 7 - 2010.

»»   www.photoburst.net   

  !   My new e-mail:   helder@ubi.pt   

»»     Um funeral à chuva        Estreia nacional dia 3 de Junho de 2010.

»» Dynamical Systems Seminar - University of Houston, March 2010.

»» Classical and Random Dynamics in Mathematical Physics, March 31 - April 3, 2010, The University of Texas at Austin, USA.

»» International Conference on Dynamical Systems. Celebrating the 70th anniversary of Jacob Palis. Búzios, Rio de Janeiro. 25/02 - 05/03.