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.