ACTIVITIES

2007

Plenary Speaker, 3rd East Asian School of Knots and Related Topics (Osaka)
Director, Development Project of Human Resources in Mathematics (BK21)

2006

Invited Speaker, Intelligence of Low Dimensional Topology (Hiroshima)
Invited Speaker, Prospects of Topology (Fukuoka)
Editor-in-Chief, Bulletin of the Korean Mathematical Society
Chairman, Department of Mathematics KAIST
Director, Development Project of Human Resources in Mathematics (BK21)

2005

Invited Speaker, 3rd Pacific Rim Conference on Mathematics (Shanghai)
Editor-in-Chief, Bulletin of the Korean Mathematical Society
Chairman, Department of Mathematics KAIST

2004

Editor, Communications of the Korean Mathematical Society

2000

Chairman of the Jury, 41st International Math. Olympiad (Daejeon)

1999

Leader of Korean Team, 40th International Math. Olympiad (Bucharest)

1990

Invited Speaker, Knots 90 (Osaka)