| Abstract |
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- URL: https://snu-ac-kr.zoom.us/j/86735555642
- ID:86735555642
For each natural number k, the C^k diffeomorphisms of the circle form a group with function compositions. This definition even extends to real numbers k no less than one by Hölder continuity. We survey algebraic properties of this group, many of which can distinguish various values of k. (Joint work with Thomas Koberda) |
