| Institution: | 1. Utrecht University, Netherlands;2. University of Coimbra, CMUC, Department of Mathematics, Portugal;3. Polytechnic Institute of Viseu, ESTGV, Portugal;1. Department of Mathematical Sciences, DePaul University, Chicago, IL 60614, USA;2. Department of Mathematics, University of Oklahoma, Norman, OK 73019, USA;1. Department of Mathematics and Computer Science, Eindhoven University of Technology, De Groene Loper 5, 5612 AZ, Eindhoven, Netherlands;2. Fakultät für Mathematik, Universität Wien, Oskar-Morgenstern-Platz 1, A-1090, Wien, Austria |
