WebOct 16, 2011 · The book is suitable for graduate students.A Primer on Mapping Class Groups begins by explaining the main group-theoretical properties of Mod(S), from finite generation by Dehn twists and low-dimensional homology to the Dehn-Nielsen-Baer theorem. Along the way, central objects and tools are introduced, ... WebThis chapter explains and proves the Nielsen–Thurston classification of elements of Mod(S), one of the central theorems in the study of mapping class groups. It first considers the classification of elements for the torus of Mod( T ² before discussing higher-genus analogues for each of the three types of elements of Mod( T ².
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WebOct 10, 2014 · A quasi-tree is a geodesic metric space quasi-isometric to a tree. We give a general construction of many actions of groups on quasi-trees. The groups we can handle include non-elementary (relatively) hyperbolic groups, CAT(0) groups with rank 1 elements, mapping class groups and Out(F n ). As an application, we show that mapping class … WebThe group is the mapping class group of S, denoted by Mod(S). This group is defined by the isotopy classes of orientation-preserving homeomorphism from S to itself. Equivalently, Mod(S) may be defined using diffeomorphisms instead of homeomorphisms or homotopy classes instead of isotopy classes. The space is the Teichmüller space of S, Teich(S). hotel alpina st. johann alpendorf
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WebOct 16, 2011 · The book is suitable for graduate students. A Primer on Mapping Class Groups begins by explaining the main group-theoretical properties of Mod ( S ), from finite generation by Dehn twists and low-dimensional homology to the Dehn-Nielsen-Baer … WebSep 10, 2015 · This provides an algebraic group structure on MCG, and the representation theory of algebraic groups is rich and elegant. I can go on forever, but I prefer to give you an excellent reference: A primer on mapping class groups, by Farb and Margalit. It develops in an accessible way everything I wrote and goes far beyond. WebNorthern Michigan University hotel altair misano