My main research interests are as follows.
Geometric analysis:
Quasiconformal & quasisymmetric mappings, Hyperbolic and Quasihyperbolic geometry.
Several Complex Variables:
Visibility and Gromov hyperbolicity of Kobayashi metric and Squeezing function problem.
Metric Geometry:
Gromov hyperbolicity and CAT(0).
Other analysis and geometry:
Classical complex function theory, Quasiconformal Teichmüller theory.