Uldis RAITUMS
Born: July 6, 1940, Riga, Latvia
Interests:
- Optimization Theory and Applications
- Applied Mathematics
- Partial Differential Equations
Languages: Latvian, English, Russian.
Education
- University of Latvia (Faculty of Physics and Mathematics), 1963
- Postgraduate, University of Latvia, 1967
- Dr.mat. (Candidate of Science in former USSR, Ph.D. in Western countries), University of
Latvia, 1969
- Dr.habil.mat. (Doctor of Science in former USSR), Moscow State University, Russia, 1989
Experience
- Junior Researcher, Senior Researcher, Head of the Laboratory, professor, Lecturer,
Institute of Mathematics and Computer Science, University of Latvia, 1965-1999
- Leading Researcher, Head of the Laboratory, Institute of Mathematics and
Computer Science,University of Latvia, 2000 -
- Professor, University of Latvia, 1995 -
Honours and Awards
Corresponding Member, Latvian Academy of Sciences,
1995 -
Professional Activities and Memberships
- Vice-president, Latvian Mathematical Society
- Member of Board, Latvian Association of Scientists
- Member of the Editorial Board, journal Control and Cybernetics
- Member, Editorial Advisory Board, journal Mathematical Modelling and Analysis (The
Baltic Journal on Mathematical Applications, Numerical Analysis and Differential
Equations), Lithuania, 1999-
- Member, Latvian Council of Science, 2003 -
Lectures
U.Raitums. Investigations on Differential Equations and Optimal Control Problems in
Latvia. Invited lecture. 22nd Nordic Congress of Mathematicians, June 4-7, Lahti, Finland,
1996
Courses
University of Latvia:
- Applied Analysis
- Optimization Methods
Recent/Representative Publications
- U.Raitums. Optimal Control Problems for Elliptic Equations, Riga: Zinatne Press,
1989, 278 pp. (in Russian)
- U.Raitums. On the mathematical aspects of optimal control problems for elliptic
equations. - Control and Cybernetics, 1990, vol.19, 3-4, pp.249-261.
- U.Raitums. The maximum principle and the convexification of optimal control problems. -
Control and Cybernetics, 1994, vol.23, 4, pp.745-760.
- U.Raitums. On the projections of multivalued maps. - J. Optimization Theory and
Applications, 1997, vol.92, pp.637-664.
- U.Raitums. On the weak closure of sets of feasible states for linear elliptic equations
in the scalar case. - SIAM J. on Control and Optimization, 1999, vol. 37,
No 4, pp. 1033-1047.
- M.Miettinen, U.Raitums. On the strong closure of strains and stresses in linear
elasticity. - Proceedings of the Royal Society of Edinburgh, 1999, vol. 129A,
pp. 987-1010.
- U.Raitums. On the strong closure of sets of feasible states and cogradients for elliptic
equations. - Dynamics of Continuous, Discrete and Impulsive Systems, 2000, vol. 7,
No. 3, pp. 335-350.
- M.Miettinen, U.Raitums. On C1-regularity of functions that define G-closure.
- Zeitschr. Analysis und ihre Anwendungen, 2001, Bd. 20, pp. 203-214.
- U.Raitums. On the local representation of G-closure. - Arch. Rational Mech. Anal., 2001,
vol.158, pp. 213-234.
- U.Raitums. A global characteristic of G-limit operators for elliptic systems. – Mathematical
Modelling and Analysis, 2002, vol.7, pp.313-318.
- U.Raitums. Relaxation of quasilinear elliptic systems via A-quasiconvex envelopes.
– ESAIM Control,Optimization and
Calculus of Variations, 2002, vol.7, pp.309-334.
- U.Raitums. On the range of some sets of homogenized potential operators. – Nonlinear
Analysis, Theory Methods and Applications, 2005, vol.63, No 3, pp.550-564
Research Projects
- U.Raitums (Head of Project). Convergence of Solutions of Systems of Partial Differential
Equations. Latvian Council of Science (1993-1996)
- U.Raitums (Head of Project). Extremal Problems for Elliptic Systems. Latvian Council
of Science (1998-2000).
- U.Raitums (Head of Project). Extensions of Families of Quasilinear Elliptic Equations. Latvian
Council of Science (2001 - 2004).
- U.Raitums (Head of Project). Extremal Problems for Elliptic Systems. Latvian Council
of Science (2005 -).
Last update 26.02.2007
