Master of Science, Leningrad State University, 1982. Doctor of Philosophy, Leningrad State University, 1985. Doctor of Science, Leningrad State University, 1998.
Doctor of Science in Physics and Mathematics, Russian Academy of Sciences, 1998.
Lecturer Moscow Aviation Institute, Branch Voskhod, 1986-1991. Associate professor Petrozavodsk State University, Russia, 1992-1999, professor Russia, since 1999. Head of laboratory Russian Academy of Sciences/Karelian Research Center.
Reviewer of mathematics reviews.
Member American Mathematics Society.
Married Marina Marlenovna Kruchek, June 15, 1984. 1 child Dmitri Yurievich.