| Affiliation: | 1. Dpt. de Matemáticas, Universidad de Salamanca, Plaza de la Merced, 1-4, E-37008 Salamanca, Spain;2. Dpt. de Informática, Estadística y Telemática, Universidad Rey Juan Carlos, E-28933 Madrid, Spain;3. Dpt. de Geometría y Topología, Universidad de Sevilla, E-41012 Sevilla, Spain;1. Department of Mathematics, Saga University, 1 Honzyo, Saga 840-8502, Japan;2. Department of Applied Mathematics, College of Applied Science, Kyung Hee University, Yong-In 446-701, Republic of Korea;1. Department of Physics, Hunter College of the City University of New York, 695 Park Ave., New York, NY 10021, USA;2. Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA;1. Instituto de Física, Universidade de São Paulo, 05508-090, São Paulo, SP, Brazil;2. Department of Applied Mathematics and Theoretical Physics, University of Cambridge, UK;1. Computer Science Department, University of Western Ontario, London, Ontario, Canada;2. Department of Computer Science, University of Calgary, Calgary, Alberta, Canada |
