S. Tumurbat

Department of Algebra, University of Mongolia

P.O. Box 75, Ulaan Baatar 20, Mongolia

E-mail:

R. Wiegandt A. Renyi

Institute of Mathematics Hungarian Academy of Sciences

P.O. Box 127,

H-1364 Budapest, Hungary

E-mail:

Department of Algebra, University of Mongolia

P.O. Box 75, Ulaan Baatar 20, Mongolia

E-mail:

R. Wiegandt A. Renyi

Institute of Mathematics Hungarian Academy of Sciences

P.O. Box 127,

H-1364 Budapest, Hungary

E-mail:

- On overnilpotent radicals of topological rings.
- Semitopological isomorphism of topological groups.
- Special radicals of graded rings.
- Generating properties of biparabolic invertible polynomial maps in three variables.
- Rings over which some preradicals are torsions.
- Transfer properties in radical theory.
- Exponent matrices and their quivers.
- Radicals of rings with involution.
**Radicals around Kothe's problem.**- Wedderburn decomposition of LCM-rings.
- Totally bounded rings and their groups of units.
- The radical theory of convolution rings.
- Artinal special Lie superalgebras.
- The classification of GL(2,R)-orbits' dimensions for system s(0, 2) and the factorsystem s(0, 1,2)/GL(2,R).