Tsviatko  Rangelov

Professor, DSc,

Mathematical Physics Department,

Institute of Mathematics and Informatics,

Bulgarian Academy of Sciences,

Acad.G.Bonchev str. 8, 1113 Sofia, Bulgaria

Phone: +359.2.9792845,

Fax: +359.2.9713649

E-mail: rangelov@math.bas.bg

           rangelov@yahoo.com

MSc (1973), PhD (1976)

Faculty of Mechanics and Mathematics,

Moscow State University;

DSc (2003) Institute of Mathematics and Informatics.

Fields of Interests:

- Solvability and hypoellipticity for pseudodifferential operators with multiply characteristics.

- Scattering theory for hyperbolic equations and systems for moving obstacles.

- Nonlinear degenerate parabolic equations.

- Boundary value problems for elasticity system in the domains with cracks, numerical solutions using Boundary Integral Equation Method.