Institution: | 1. Department of Mathematical Sciences, University of Cincinnati, Cincinnati, OH 45221-0025, United States;2. Departamento de Ingeniería Matemática e Informática and Institute of Advanced Materials (INAMAT), Universidad Pública de Navarra, 31006 Pamplona, Spain;1. Graduate School of Science, Osaka City University and OCAMI, Sugimoto Sumiyoshi-ku 3-3-138, Osaka 558-8585, Japan;2. Faculty of Science, Yamagata University, Kojirakawa-machi 1-4-12, Yamagata 990-8560, Japan |