My main interests are fractals and dynamical systems. During the last 8 year I have worked on the following topics:
Iterated function systems (linear and non-linear hyperbolic and parabolic), self-similar and self-affine sets, Hausdorff dimension, Cantor sets and measures, Bernoulli convolutions, self-similar tilings, tiling dynamical systems, spectral theory of tilings and substitutions, adic transformations, beta-expansions, zeros of power series with restricted coefficients, numeration systems related to Pisot-Vijayaraghavan numbers.
I obtained my Ph.D. in 1986 at the St.Petersburg (formerly Leningrad) State University, in the area of operator theory and functional analysis.