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不定复空间形式中全实类空子流形的δ不等式

A δ Inequality for Totally Real Complete Space-like Submanifolds in Indefinite Complex Space Form

  • 摘要: 针对不定复空间形式的全实类空子流形,研究内蕴不变量δn1n2,…,nk)和外在不变量(平均曲率的平方)之间的几何不等式问题。采用代数不等式和活动标架的方法,建立不定复空间形式中类时全测地和类空全测地子流形两种情况下关于δ(2)和δn1n2,…,nk)的不等式,得到不定复空间形式中全实类空子流形的δ不等式。

     

    Abstract: For totally real complete space-like submanifolds in indefinite complex space form, the problem of establishing geometric inequalities between the intrinsic invariants δ (n1, n2, …, nk) and the extrinsic invariants (square of the mean curvature) was studied. The inequalities about δ(2) and δ(n1, n2, …, nk) of time-like and space-like geodesic submanifolds in the indefinite complex space were established by algebraic inequalities and moving frame methods, and the δinequality for totally real complete space-like submanifolds in indefinite complex space form was obtained.

     

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