半黎曼流形中的代数零中曲率簇
Algebraic zero mean curvature varieties in semi-riemannian manifolds
摘要:
在本文中,我们提供了一个家庭的代数类空曲面的三维anti-de Sitter空间,这表明,这个洛伦兹流形承认代数极大的例子,任何顺序。然后,我们对反deSitter $N$维空间中的所有类空二阶代数极大超曲面进行了分类。最后,给出了de Sitter空间中Lorentz二阶代数零中曲率的两类例子.
英文摘要:
In this paper we provide a family of algebraic space-like surfaces in the three dimensional anti de Sitter space that shows that this Lorentzian manifold admits algebraic maximal examples of any order. Then, we classify all the space-like order two algebraic maximal hypersurfaces in the anti de Sitter $N$-dimensional space. Finally, we provide two families of examples of Lorentzian order two algebraic zero mean curvature in the de Sitter space.
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