publicaciones seleccionadas artículo académico On Elliptic Problems in Domains with Unbounded Boundary. PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY. 49:709-734. 2006 An estimate on the relative morse index for Strongly Indefinite Functionals. ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS. 6:1-11. 2001 Index Estimates for Strongly Indefinite Functionals, Periodic Orbits and Homoclinic Solutions of First Order Hamiltonian Systems. CALCULUS OF VARIATIONS AND PARTIAL DIFFERENTIAL EQUATIONS. 11(4):395-430. 2000