ACTIVITIES |
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2007 |
Plenary Speaker, 3rd East Asian School of Knots and Related Topics (Osaka) |
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2006 |
Invited Speaker, Intelligence of Low Dimensional Topology (Hiroshima) |
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2005 |
Invited Speaker, 3rd Pacific Rim Conference on Mathematics (Shanghai) |
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2004 |
Editor, Communications of the Korean Mathematical Society |
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2000 |
Chairman of the Jury, 41st International Math. Olympiad (Daejeon) |
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1999 |
Leader of Korean Team, 40th International Math. Olympiad (Bucharest) |
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1990 |
Invited Speaker, Knots 90 (Osaka) |