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Closed forms and multi-moment maps

Publikation: Working paperForskning

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We extend the notion of multi-moment map to geometries defined by closed forms of arbitrary degree. We give fundamental existence and uniqueness results and discuss a number of essential examples, including geometries related to special holonomy. For forms of degree four, multi-moment maps are guaranteed to exist and are unique when the symmetry group is (3, 4)-trivial, meaning that the group is connected and the third and fourth Lie algebra Betti numbers vanish. We give a structural description of some classes of (3, 4)-trivial algebras and provide a number of examples.
OriginalsprogEngelsk
UdgiverDepartment of Mathematics, Aarhus University
Antal sider34
StatusUdgivet - 4 nov. 2011

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