Institution: | Alfa-Bank, Masha Poryvaeva str., 9, 107078, Moscow, Russia, RU Laboratoire de Mathématiques, Université de Franche-Comté, 16 Route de Gray, 25030 Besan?on cedex, France (e-mail: Youri.Kabanov@Math.Univ-FComte.FR) and Central Economics and Mathematics Institute, Moscow, Russia, RU Tomsk State University, Lenin str., 36, 634050 Tomsk, Russia, RU
|