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Fecha de publicación: 2003 PERMISOS Impresión: No - Copia: No IDIOMA: INGLÉS "We dedicate this volume of survey and research articles to Jorge Sotomayor to mark his 60th birthday, celebrated on March 25, 2002. The contributors are his friends and colleagues from Brazil and abroad. Some of them were speakers at the workshop tit...

Fecha de publicación: 2003 PERMISOS Impresión: No - Copia: No IDIOMA: INGLÉS Qualitative Theory of Dynamical Systems is the journal of the Seminari de Sistemes Dinàmics de la Universitat de Lleida. Two issues are published each year, constituting a single volume. Versal Unfoldings for Rank-2Singularities of Positive Quadrat...