Institution: | 1. Department of Mathematics, University of West Bohemia, Czech Republic;2. Centre of Excellence ITI, Charles University, Czech Republic;3. European Centre of Excellence NTIS, P.O. Box 314, 306 14 Pilsen, Czech Republic;4. Faculty of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan;5. School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, PR China;6. Department of Mathematics, College of Science and Technology, Nihon University, Tokyo 101-8308, Japan |