1. Department of Mathematics, State University of New York at Buffalo, Buffalo, NY 14260-2900, USA
2. Department of Complexity Science and Engineering, The University of Tokyo, Chiba 277-8561, Japan
3. Computational and Data-Enabled Science and Engineering Program, State University of New York at Buffalo, Buffalo, NY 14260-5030, USA
4. Faculty of Science and Engineering, Waseda University, Tokyo 169-8555, Japan