Centre de Recerca Matemàtica (CRM) - Mathematical research center in Barcelona.

Technical University of Catalonia (UPC) - Department of Applied Mathematics and Telematics.

National University of Distance Education (UNED) - Departamento de Matemáticas Fundamentales.

Technical University of Catalonia (UPC) - Department of Applied Mathematics I.

Autonomous University of Barcelona (UAB) - Department of Mathematics.

University of Santiago de Compostela - Department of Geometry and Topology.

Universidad Nacional de Educacion a Distancia - Departamento de Matemáticas Fundamentales.

University of Barcelona - Department of Algebra and Geometry.

University of Barcelona - Department of Applied Mathematics and Analysis.

Universidad de Valladolid - Department of Applied Mathematics and Computation.

University of Barcelona - Department of Applied Mathematics and Analysis.