deSitter空间中完备类空子流形的余维数约化
发布时间:2018-06-08 03:04
本文选题:类空子流形 + de ; 参考:《兰州大学学报(自然科学版)》2017年02期
【摘要】:设M~n为等距浸入到de Sitter空间S_p~(n+p)(c)中的完备类空子流形,平均曲率H有界且具有平行单位平均曲率向量场.如果Mn的第2基本型模长平方S满足S≤n~2-n~(1/2)/nH~2+c/n,证明了该子流形的余维数p可约化为1.
[Abstract]:Let M _ n be a complete space-like submanifold in de Sitter space S _ p _ (n). The mean curvature H is bounded and has a parallel unit mean curvature vector field. It is proved that the codimension p of the submanifold can be reduced to 1 if the square S of the second fundamental form of mn satisfies S 鈮,
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