Education, scientific degrees
Doctor of Science (Math), Sofia, 2008
Ph.D. on Discrete Mathematics, University of Sofia, 1984–1987
M.Sc. on Algebra, University of Sofia, 1977–1978
B.Sc. on Mathematics, University of Sofia, 1973–1977
Secondary school, Dupnica, 1968–1971.
Main publications:
Shtrakov, Sl., “Essential arity gap of Boolean functions”, Journal of Computing, Serdica, 2:3 (2008), 249–266; arXiv:0808.3892
Shtrakov, Sl., “Essential variables and positions in terms”, accepted, J. Algebra Universalis, 2008, 1–17
Shtrakov, Sl., “Multi-Solid Varieties and Mh-transducers”, Journal of Algebra and Discrete Mathematics, 2007, № 3, 113–131; arXiv:math/0702454
Denecke, K., Koppitz, J., Shtrakov, “Multi-Hypersubstitutions and Colored Solid Varieties”, International Journal of Algebra and Computation, 16:4 (2006), 797–815; arXiv:0811.4764
Koppitz, J., Shtrakov, “On mappings of terms determined by hypersubstitutions”, Journal of Algebra and Discrete Mathematics, 2005, № 3, 18–29; arXiv:0811.3325
