Education

• 1986 Temple University (Ph.D Number Theory (Modular form))

• 1982 Ewha Womans University (B.S. Math)

Positions

• 20220901-20290831: University Professor, POSTECH

• 20140914 – 20140930; 20150201-20150214 Visiting Scholar , Max Planck Institute Mathematics, Bonn, Germany

• 20141001- 20141130 ; Visiting Professor,Columbia University, Dept of Mathematics, USA

• 20110326 – 20110625 Visiting Professor, Stanford University, Dept of Mathematics, USA

• 20110210 – 20110325; Visiting Scholar, Max Planck Institute, Mathematics, Bonn, Germany

• 20100124-20100207; Visiting Scholar, Institute for Advanced Study, Princeton, Analytic Number Theory Special Year

• 200505; Visiting Professor, Fourier Institute, Grenoble, France

• 200505; Visiting Professor, University of Heidelberg, May 2005

• 2005, Spring: Stanford University,Visiting Professor

• 1996. 03- 1997.02: University of Cambridge, England, Visiting Scholar

• 1990.01-present: Pohang Unviersity of Science and Technology(POSTECH), Professor

• 1989. 09 – 1990.01: University of Colorado, Assistant Professor

• 1988.09 – 1990.01: Univ.of Maryland(Math), Visiting Assistant Professor

• 1986.08 – 1988.08: Ohio State Univ.(Math), Lecturer

• 1986 Temple University (Ph.D Number Theory (Modular form))

• 1982 Ewha Womans University (B.S. Math)