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arXiv 0811.2244hep-th
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不含三全纯U(1)等距的超引力解

Supergravity Solutions Without Tri-holomorphic U(1) Isometries

A. M. Ghezelbash

摘要:

我们研究了不具有任何三全纯U(1)等距的五维超引力解的构造。我们构造了一类解,在不同的参数限制下,这些解可以简化为许多以前构造的基于超Kahler基空间的五维超引力解,这些超Kahler基空间可以放入Gibbons-Hawking形式,而超Kahler基空间不能放入Gibbons-Hawking形式。我们在三轴Bianchi IX型Einstein-hyperkahler基空间上找到了一个新的解,它不具有三全纯U(1)对称性.这种解决方案的一个特殊情况对应于五维解决方案的基础上江口汉森II型几何。

英文摘要:

We investigate the construction of five-dimensional supergravity solutions that don't have any tri-holomorphic U(1) isometries. We construct a class of solutions that in various limits of parameters reduces to many of previously constructed five-dimensional supergravity solutions based on both hyper-Kahler base spaces that can be put into a Gibbons-Hawking form and hyper-Kahler base spaces that can't be put into a Gibbons-Hawking form. We find a new solution which is over triaxial Bianchi type IX Einstein-hyperkahler base space with no tri-holomorphic U(1) symmetry. One special case of this solution corresponds to five-dimensional solution based on Eguchi-Hanson type II geometry.

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