Abstract
Two descriptions of quaternionic Kähler quotients by proper group actions are given: the first as a union of smooth manifolds, some of which come equipped with quaternionic Kähler or locally Kähler structures; the second as a union of quaternionic Kähler orbifolds. In particular the quotient always has an open set which is a smooth quaternionic Kähler manifold. When the original manifold and the group are compact, we describe a length space structure on the quotient. Similar descriptions of singular hyperKähler and 3-Sasakian quotients are given.
Original language | English |
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Journal | International Journal of Mathematics |
Volume | 8 |
Issue | 5 |
Pages (from-to) | 595-610 |
Number of pages | 16 |
ISSN | 0129-167X |
DOIs | |
Publication status | Published - 1 Jan 1997 |
Externally published | Yes |