2002–today Chung-Ang University
2000-2002 Korea Aerospace University
1999–2000 Global Analysis Research Center at Seoul N. University
1997–1999 Univ. of California, Berkeley
1996–1997 Univ. of California, Irvine
August 2006 Ph.D. in Mathematics, SUNY Stony Brook, U.S.A.
Februray 2000 B.S. in Mathematics, Seoul National University, Korea