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arXiv 1503.06305math.DG
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一类齐次Lorentz三维流形中的极大类空曲面

Maximal spacelike surfaces in a certain homogeneous Lorentzian 3-manifold

Sungwook Lee

摘要:

考虑一类齐次Lorentzian三维流形的2参数族,它包含Minkowski三维空间和反de Sitter三维空间。2-参数族中的每一个齐次Lorentzian 3-流形都有一个具有左不变度量的可解李群结构。得到了一类广义整表示式,它是齐次Lorentz三维流形中极大类空曲面表示式的统一。讨论了齐次洛伦兹三维流形中极大类空曲面的法高斯映射及其调和性。

英文摘要:

The 2-parameter family of certain homogeneous Lorentzian 3-manifolds which includes Minkowski 3-space and anti-de Sitter 3-space is considered. Each homogeneous Lorentzian 3-manifold in the 2-parameter family has a solvable Lie group structure with left invariant metric. A generalized integral representation formula which is the unification of representation formulas for maximal spacelike surfaces in those homogeneous Lorentzian 3-manifolds is obtained. The normal Gauß map of maximal spacelike surfaces in those homogeneous Lorentzian 3-manifolds and its harmonicity are discussed.

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