Romanyuk Viktor

[1989 - 1992] Postgraduate student at the Institute of Mathematics of the National Academy of Sciences of Ukraine, Department of Theory of functions, speciality "Mathematical Analysis", PhD degree.

[1981 -1986] Student at Taras Shevchenko State University of Kyiv, Faculty of Mechanics and Mathematics, speciality "Mathematics".

"Approximation of $(\psi, \beta)$-differentiable functions in the areas of complex plane", Institute of Mathematics of the Academy of science of Ukraine, Kyiv, 1992.

Scientific adviser: Prof. Stepanets A. I.

- Linear and non-linear approximation of functions of several real variables
- Approximation theory of analytic functions of complex variable
- Function spaces
- Basis systems of functions

[1992 - up to now] Senior researcher at department of theory of functions of the Institute of Mathematics of the NAS of Ukraine.