Professor of Department of Mathematics of Konkuk Univ.
Address Sang-Jin Lee
Department of Mathematics, Konkuk Univ.
Gwangjin-gu, Seoul 143-701, KoreaTelephone +82 (0)2 450-3407 Fax +82 (0)2 458-1952 sangjin (at) konkuk.ac.kr URL http://konkuk.ac.kr/~sangjin
- Braid Group
- Geometric group theory
- Low dimensional Topology
- Cryptography
E.-K. Lee, S. J. Lee and S. Hahn,
Pseudorandomness from braid groups,
CRYPTO 2001, 486-502, LNCS 2139, Springer, Berlin, 2001.
The 5th East Asian School of Knots and Related Topics, January 11-16, 2009, Gyeongju TEMF Hotel, Gyeongju, Korea.
2007 Topology Workshop at Konkuk University, November 28 - 29, 2007, Konkuk University, Seoul, Korea.
2006 Geometry & Topology Day at Konkuk University, November 18, 2006, Konkuk University, Seoul, Korea.
The First East Asian School of Knots, Links and Related Topics, February 16-20, 2004, Seoul, Korea.
1988.3 - 1992.2 B.S. at KAIST 1992.3 - 1994.2 M.S. at KAIST 1994.3 - 2000.2 Ph.D. at KAIST 2000.3 - 2001.3 Research Fellow at KAIST, Taejon, Korea 2001.4 - 2002.2 Research Fellow at CMI, Marseille, France 2002.3 - 2003.8 Research Fellow at KIAS, Seoul, Korea 2003.9 - 2007.8 Assistant professor at Dept. Mathematics, Konkuk Univ., Seoul, Korea 2007.9 - 2012.08 Associate professor at Dept. Mathematics, Konkuk Univ., Seoul, Korea 2012.9 - Professor at Dept. Mathematics, Konkuk Univ., Seoul, Korea
Conjugacy of braids in the centralizer of a periodic braid, The 5th East Asian School of Knots and Related Topics, January 11-16, 2009, Gyeongju TEMF Hotel, Gyeongju, Korea.
Conjugacy classes of symmetric braids, Braids in Paris, September 17-20, 2008, Universite Paris Diderot (Paris 7), Paris, France.
Braid groups and related groups, The First Topology Workshop, August 12-14, 2008, KAIST, Daejon, Korea.
Braids, 2008 POSTECH Summer School on Knots and Manifolds, July 22-25, 2008, POSTECH, Pohang, Korea.
Discreteness properties of translation numbers in Garside group, The 2008 spring meeting of the Korean Mathematical Society, April 26, 2008, Keimyung University, Daegu, Korea.
Eon-Kyung Lee and I visited Tokyo Institute of Technology(Tokyo, Japan) during February 11--24 (2008), and gave five lectures on Garside groups and braid cryptography.
Uniqueness of roots up to conjugacy of braids, The 5th TAPU Workshop on Knots and Related Topics, January 17--19, 2008, Kyungpook National University, Daegu, Korea.
Reduction systems and ultra summit sets of reducible braids, Braids, June 25--29, 2007, Institute for Mathematical Sciences, National University of Singapore, Singapore. Presentation File.
Garside groups and translation numbers, The Many Strands of the Braid Groups, April 22-27, 2007, Banff International Research Station, Banff, Canada. Presentation File.
Properties of translation numbers in Garside groups, The 3rd East Asian School of Knots and Related Topics, February 5--8, 2007, Osaka City University, Osaka, Japan.