Uldis RAITUMS

(6.07.1940 –12.08.2012)

Professor Uldis RAITUMS Institute of Mathematics and Computer Science University of Latvia Raina bulvaris 29 Riga, LV 1459 Latvia Phone: +371 7211421 Fax: +371 7820153 E-mail: [email protected]

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 15.08.2012