| Institution: | 1. Institut für Mathematik und Informatik, Ernst-Moritz-Arndt-Universität Greifswald, Jahnstraße 15a, 17487 Greifswald, Germany;2. Institut Élie-Cartan, B.P. 239, Université H.-Poincaré-Nancy I, 54506 Vandœuvre-lès-Nancy, France;3. LORIA, B.P. 239, Université H.-Poincaré-Nancy I, 54506 Vandœuvre-lès-Nancy, France;1. Department of Statistic, School of Mathematics and Statistic Science, Ludong University, Yantai, Shandong, China;2. Department of Mathematics, Harbin Institute of Technology, Harbin, 150001, China |
