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University Positions: **

1986-1989, Assistant-Professor, Center of Mathematics, Technical University, Rousse,

1990-1993, Senior Assistant-Professor,Center of Mathematics, Tchnical University, Rousse

1993- 1995, Principal Assistant-Professor,Center of Mathematics, Technical University, Rousse

1995- 1998, Principal Assistant-Professor,Department of Mathematics, University of Mining and Geology, Sofia

1999-2000, Researcher,Department of Mathematical Physics, Institute of Mathematics,Bulgarian Academy of Sciences Sofia

2000-now, Associate Professor,Department of Mathematical Physics,Institute of Mathematics,Bulgarian Academy of Sciences,Sofia

Membership in Professional Associations