<Education>

Courant Institute, New York University New York, NY

- M. S. and Ph. D. in Mathematics

Seoul National University Seoul, Korea

- B. A. in Mathematics

<Professional Career>

Sep, '97 - Present Chung-Ang University, Seoul, Korea

Professor(Sep, ’07 - Present)

Dec, '07 - Feb, '08 R.I.M.S., Kyoto University, Kyoto, Japan

Visiting Scholar

Sep, '05 - Aug, '06 Oregon State University, Oregon, USA

Visiting Associate Professor

Sep, '12 - Feb, '13 University of Michigan, Michigan, USA

Visiting Professor