1997
Ph.D. Mathematics, Stanford University, Stanford, CA
1993
M.A. Mathematics, Stanford University, Stanford, CA
1991
B.A. Mathematics, Princeton University, Princeton, NJ: Magna cum laude
1987
Phillips Exeter Academy, Exeter, NH: Magna cum laude
2013-현재
Department of Mathematical Sciences: Professor, Seoul National University, Seoul Korea
2017-현재
Institute for Mathematical Data Analytics Research Center: Vice Director
2000-2013
Department of Mathematics: Associate Professor (with tenure since July 2007), University of Rhode Island, Kingston, RI
1998-2000
Department of Mathematics: Visiting Assistant Professor, George Washington University, Washington, DC
1996-1998
School of Mathematics: Visiting Assistant Professor, University of Minnesota, Minneapolis, MN
1996
Data Compression Group: Summer Postdoctoral Fellow, Interval Research Corp., Palo Alto, CA
1991-1996
Department of Mathematics: Teaching and Research Assistant in Mathematics, Stanford University, Stanford, CA
Combinatorics: homology of matroids, combinatorial Laplace operators, harmonic space
Algebraic Topology: group cohomology, homological algebra
Commutative Algebra: face ring of simplicial complexes
Network and Data Sciences: simplicial networks, topological data analysis
