Participation in conferences, symposia, workshops, etc.

Abroad:

·        Banach Semesters, Warsaw, Poland, 1985, 1990.

·        Republican Lectures on Ordinary Differential Equations, Minsk, Belarus, 1990.

·        International Conferences on Mathematical Population Dynamics: Third, Pau, France, 1992; Fifth, Zakopane, Poland, 1998.

·        Workshop on Nonlinear Evolutionary Equations, ICTP, Trieste, Italy, 1993.

·        Colloquium of the French Biological Society, St. Flour, France, 1993.

·        Conference on Ordinary Differential Equations, Florence, Italy, 1993.

·        Workshop of the Commission of the European Communities on International Projects, Design Methodologies, Populations Dynamics, etc., Gliwice and Cracow, Poland, 1993.

·        Workshop on Application of Oscillating Integrals to Hyperbolic Differential Equations, International Centre for Mathematical Sciences, Edinburgh, Scotland, 1994.

·        Conference on Nonlinear Differential Equations, Kyiv, Ukraine, 1995.

·        School on Nonstandard Analysis and Applications, International Centre for Mathematical Sciences, Edinburgh, Scotland, 1996.

·        Conference on Functional Differential-Difference Equations and Applications, Antalya, Turkey, 1997.

·        Conference on Biomathematics-Bioinformatics and Applications of Functional Differential-Difference Equations, Alanya, Turkey, 1999.

·        3rd World Congress of Nonlinear Analysis, Catania, Italy, 2000.

·        Workshop on Differential Equations and their Applications, Istanbul, Turkey, 2000.

·        International Conference on Functional Differential Equations and Applications, Beer-Sheva, Israel, 2002.

 ·         Conference on Differential Equations and Applications, Žilina, Slovakia, 2003.  

In Bulgaria:

·        Conferences on Differential Equations, Roussé, 1985, 1989.

·        Conference on Integral Equations and Inverse Problems, Varna, 1989.

·        Workshop on Nonlinear Hyperbolic Equations, Sofia, 1991.

·        First-Sixth International Colloquia on Differential Equations, Plovdiv, 1990-1995.

·        First and Second International Collloquia on Numerical Analysis Plovdiv, 1992, 1993.

·        Summer Schools “Application of Mathematics in Engineering”, Varna, 1986, 1988-1994; Sozopol, 1998-2001.

Other visits abroad:

·        Visit of the Institute of Mathematics, Akademie der Wissenschaft der DDR (the former East Germany), 1987.

·        Visit of the Akdeniz University, Antalya, Turkey, 1992.

·        Visit of the Université de Pau et du Pays de l'Adour, Pau, France, 1993.

·        Visit of the Valencia Polytechnical University (Spain) for joint research with Prof. L. Jódar supported by the Commission of the European Communities, 1993.

·        Visit of Fatih University, Istanbul, Turkey, 2000.

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