Academician of the NAS of Armenia, Academician-Secretary of the Division of Mathematical and Technical Sciences, Member of the Presidium of the NAS RA

Mathematics:

Complex Analysis,
Approximation Theory.

- Presidium of the National Academy of Sciences of Armenia, 1991-1994
- Editorial board of the journal 'Matematicheskie Zametki', 1970-1980
- Editorial board of the journal 'Matematika', Izvestiya Akad. Nauk Armenii

 - Editorial board of the International journal “Analysis”

 - President of the fund "Research Mathematics" in Armenia

- Member of the Panel 'Complex Analysis' of the International    Congresses  of Mathematicians: Vancouver 1974, Warsaw 1983

- President of the Armenian Mathematical Union (1994-1997)
- Co-director of the NATO Advanced Study Institute, Montreal 2000

Graduate: Faculty of Physics and Mathematics, Yerevan State University, 1953 - 1958

Ph. D: Yerevan State University (1962).
Title of PhD thesis:  Uniform and Tangential Approximations By Entire Functions in The Complex Domain. 
Doctor of Sc: Steklov Mathematical Institute of the Academy of Sciences of USSR (1970).
Title of Doctor's thesis:  Some Questions of approximation theory and the Theory of Entire Functions.

Junior and Senior Scientific Researcher, Institute of Mathematics and Mechanics of the Academy of Sciences of Arm SSR (1959-1971)
Senior Scientific Researcher, Institute of Mathematics of the Academy of Sciences of Arm SSR (1971-1978)
Head of the Department of Approximation Theory, Institute of Mathematics of the Academy of Sciences of Arm SSR and Armenia  (1978-1991,1997-2004)

Head of the Department of Complex Analysis, Institute of Mathematics of the National Academy of Sciences of Armenia (2005-p.t.)

- Assistant of the Chair of Function Theory of YSU (1958-1959)
- Docent of the Chair of Function Theory of YSU (1959-80, by correspondence)
- Head of Chair of Function Theory of YSU (1992-2000)
General Courses:
     Mathematical Analysis
     Complex Function Theory
Special Courses:
     Topics in Complex Approximation Theory
     Value Distribution of Meromorphic Functions
     Geometric Function Theory
     Potential Theory and Analytic Functions
     Taylor Series: Analytic continuation and Singularities
     Seminar: Complex function theory

10 Ph.D thesises on Approximation Theory and Complex Analysis

Vice-director (1974 - 1989) and director (1989-1991, 1997 - p t.) of the Institute of Mathematics NAS of Armenia
Rector of Yerevan State University (1991 - 1993)
Academician-secretary of the Division of Mathematical and Technical  Sciences the NAS of Armenia (2006 - p.t.)

Visiting Researcher:

Montreal University (1981, 1994), Canada;
Royal Institute of   Technology, Stockholm (1997, 1999), Sweden; University of Bordeaux 1 (1999), France;
Universities of Oldenburg (1998) and Trier (2001, 2006), Germany.

-Grant No. MVK000 of the International Science Foundation as a Principal Investigator ( July 1, 1994-June 31, 1995)
-INTAS grant (Ref. No. 93-1376) for 12 months, 1996.

-IV All -Union Conference on Theory of Functions, Moscow, 1958 -International Conference on Theory of functions, Yerevan, 1965
- Intern. Congress of Mathematicians: Moscow 1966, Nice 1970, Kyoto 1990
- International Conference on Complex analysis and applications, Varna, 1972, 1983
- International Conference on Functions approximation theory, Kaluga, 1975
- International Conference on Complex analysis and applications, Halle, 1976, 1980
- Banach Semester on Complex Analysis, Warsaw, 1979
- First Soviet-American Conference on approximation theory, Tampa, FL, 1989
- International Conference on Analysis and Logic, Mons,1997
- NATO Advanced Institute on Approximation, Complex Analysis, and Potential theory, Montreal 2000

Soviet Union Komsomol Prize and Gold Medal winner in Mathematics (1969-70)
Corresponding Member of the Academy of Sciences of Arm SSR
Professor,  Academy of Sciences of Arm SSR  (1989)
Academician of the Academy of Sciences of Arm SSR (1990)

Deserved Scientist of Armenia (2003)

Honorary Doctor of Trier University (Germany, 2004)