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arXiv math/0011061math.DG
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几类特殊拉格朗日环面

Some families of special Lagrangian tori

Diego Matessi

摘要:

给出了R的一个结果的局部形式的一个简单证明。Bryant,指出任何三维黎曼流形都可以等距嵌入为卡-丘流形中的特殊拉格朗日子流形。我们改进了定理,证明了3-torus上的某类单参数度量族可以等距嵌入到Calabi-Yau流形中作为特殊拉格朗日子流形的单参数族.我们用单参数族的例子证明了所提出的镜像流形上的半平坦度量是N。希钦不一定是三维的里奇平坦。

英文摘要:

We give a simple proof of the local version of a result of R. Bryant, stating that any 3-dimensional Riemannian manifold can be isometrically embedded as a special Lagrangian submanifold in a Calabi-Yau manifold. We refine the theorem proving that a certain class of one-parameter families of metrics on a 3-torus can be isometrically embedded in a Calabi-Yau manifold as a one-parameter family of special Lagrangian submanifolds. We use our examples of one-parameter families to show that the semi-flat metric on the mirror manifold proposed be N. Hitchin is not necessarily Ricci-flat in dimension 3.

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