Linear and Nonlinear PDEs, Isoperimetric problems, weighted Sobolev inequalities.
Geometric analysis on symmetric spaces, Representations of real Lie groups, Geometric quantization.
Infinite-dimensional Lie algebras and Algebraic combinatorics
Fractal Interpolation, Shape Preserving Interpolation, Geometric Modelling, Fractal Approximation, Wavelets
Complex analysis, Functional Spaces, Special Functions
Harmonic Analysis, Time -frequency Analysis, Mathematical sampling theory and data sciences, Solutions of operator equations
Approximation Theory, Sampling Operators
Functional Analysis, Matrix Theory
Operator Algebra, Operator Theory, Quantum Information theory.
Nonlinear Analysis-nonsmooth analysis and Optimization
Several Complex Variables