| Institution: | 1. Institute of Mathematics, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam;2. Faculty of Computer Science and Mathematics, University of Passau, Germany;1. Universidad Metropolitana de Ciencias de la Educación, Av. José Pedro Alessandri 774, Ñuñoa, Santiago, Chile;2. Grinnell College, 1116 Eighth Ave., Grinnell, IA 50112, USA;3. Colgate University (emeritus), 13 Oak Dr., Hamilton, NY 13346, USA;4. The University of Portland, 5000 N. Willamette Blvd., Portland, OR 97203, USA;1. Drysdale Building, City, University of London, Northampton Square, London, EC1V 0HB, UK;2. Alan Turing Building, University of Manchester, Oxford Road, Manchester, M13 9PL, UK |
