Robust index bounds for minimal hypersurfaces of isoparametric submanifolds and symmetric spaces
Robust index bounds for minimal hypersurfaces of isoparametric submanifolds and symmetric spaces
复制标题
等参子流形和对称空间的最小超曲面的鲁棒指数界
DOI:
10.1007/s00526-019-1552-x
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发表时间:
2019
影响因子:
2.1
通讯作者:
Radeschi, Marco
中科院分区:
文献类型:
--
作者:
Gorodski, Claudio;Mendes, Ricardo A.;Radeschi, Marco
We find many examples of compact Riemannian manifolds (M,g) whose closed minimal hypersurfaces satisfy a lower bound on their index that is linear in their first Betti number. Moreover, we show that these bounds remain valid when the metricgis replaced within a neighbourhood ofg. Our examples (M,g) consist of certain minimal isoparametric hypersurfaces of spheres, their focal manifolds, the Lie groupsforandfor alln, and all quaternionic Grassmannians.
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