Abstract
Margalit and Schleimer (Geom Topol 13(3):1495-1497, 2009) discovered a nontrivial root of the Dehn twist about a nonseparating curve on a closed oriented connected surface. McCullough and Rajeevsarathy (Geom Dedicata 151(1):397-409, 2011) and Monden (Rocky Mt J Math, to appear) obtained the evaluation of the degrees of roots of Dehn twists. In this paper, we discuss existence and degrees of homeomorphisms whose power is equal to disk twist about a nonseparating disk in the mapping class group of the 3-dimensional handlebody.
Original language | English |
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Pages (from-to) | 73-82 |
Number of pages | 10 |
Journal | Geometriae Dedicata |
Volume | 164 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jun 2013 |
Externally published | Yes |
Keywords
- 3-Dimensional handlebody
- Disk twist
- Mapping class group
- Root
ASJC Scopus subject areas
- Geometry and Topology