Math Colloquia

1315

Date | Mar 13, 2014 |
---|---|

Speaker | 김상현 |

Dept. | 서울대학교 |

Room | 129-101 |

Time | 16:00-17:00 |

The mapping class group of a surface S is the component group of orientation-preserving homeomorphisms on S. We survey geometric and algebraic aspects of this group, and introduce a technique of using right-angled Artin groups to find geometrically significant subgroups of this group. We briefly discuss related groups such as braid groups and area-preserving diffeomorphism groups of surfaces.

TEL 02-880-5857,6530,6531 / FAX 02-887-4694