FMSPレクチャーズ

過去の記録 ~08/17次回の予定今後の予定 08/18~

担当者 河野俊丈

2018年02月21日(水)

15:00-16:30   数理科学研究科棟(駒場) 117号室
全3回講演の(1)
Etienne Ghys 氏 (ENS de Lyon)
The topology of singular points of real analytic curves (ENGLISH)
[ 講演概要 ]
In the neighborhood of a singular point, a germ of real analytic curve in the plane consists of a finite number of branches. Each of these branches intersects a small circle around the singular point in two points. Therefore, the local topology is described by a chord diagram : an even number of points on a circle paired two by two. Not all chord diagrams come from a singular point. The main purpose of this mini course is to give an complete description of those ‘’analytic ? chord diagrams. On our way, we shall meet some interesting concepts from computer science, graph theory and operads.
[ 講演参考URL ]
http://fmsp.ms.u-tokyo.ac.jp/FMSPLectures_Ghys.pdf