Conference and seminar talks

• Finiteness conditions on injective hulls of simple modules over Noetherian rings, Encontro Nacional da Sociedade Portuguesa de Matemática, Faro, Portugal (2012-07-11).

• On the injective hulls of simple modules over some Noetherian rings Seminar of Representation Theory and Related Areas, University of Coimbra, Portugal (2011-04-06).

• Down-Up Algebras and their representations, Departmental Seminar, University of Kent, Canterbury, UK (2010-02-19).

• Automorfismos de álgebras Down-Up generalizadas, Encontro Nacional da Sociedade Portuguesa de Matemática, Coimbra, Portugal (2008-06-25).

• Automorphisms of Generalized Down-up Algebras, Algebra Seminar, Bialystok, Poland (2008-10-13).

• Down-Up Algebras, Algebra Seminar, Faculty of Mathematics, Mechanics and Informatics, Warsaw University, Poland (2008-10-16).
• Some classes of Noncommutative rings, Mini-course, Izmir Institute of Technology, Turkey (Juin – 2008).
• Down-Up algebras and teir representation theory, Algebra Seminar, Universidade de S\~ao Paulo, Brasil (2005-11-11).
• Down-up Algebras, Algebra Seminar, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil (2005-11-17).
• On the Representation Theory of Down-Up algebras, Algebra Seminar, University of Buenos Aires, Argentina (2004-12-14).
• Algebras de Azumaya, Semin\'ario de \'Algebra, University of Lisbon, Portugal (Juin, 2002).
• Down-up algebras, Algebra Seminar, Queen's University, Belfast, UK (May, 2000).
• Some crossed products which are Azumaya Algebra Seminar, Universidade de Wisconsin-Milwaukee, USA (1999).
• Some crossed products which are Azumaya, Dennison Conference, Ohio, USA (1998).
• Prime links in some skew-Laurent rings, Ring Theory Conference, Miskolc, Hungria (1997).