I am interested in the meaning of “quantization" in string theories and quantum field theories especially their dualities and universality. Very often dualities lead to deep mathematical conjectures. String dualities may lead to the successful unification of general relativity and quantum field theory. My current research interest is as follows: Application of duality to low dimensional topology representation theory and combinatorics; Renormalization and quantization: its algebraic geometric and categorical meaning; Gauge/gravity correspondence open/closed string duality.