STRATIFIED HYPERKaHLER SPACES FROM SEMISIMPLE LIE ALGEBRAS

被引:4
|
作者
MAYRAND, M. A. X. E. N. C. E. [1 ]
机构
[1] Univ Oxford, Math Inst, Woodstock Rd, Oxford OX2 6GG, England
关键词
REDUCTION; METRICS;
D O I
10.1007/s00031-018-9501-x
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study singular hyperkahler quotients of the cotangent bundle of a complex semisimple Lie group as stratified spaces whose strata are hyperkahler. We focus on one particular case where the stratification satisfies the frontier condition and the partial order on the set of strata can be described explicitly by Lie theoretic data.
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页码:191 / 215
页数:25
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