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本文给出了Kerr-NUT黑洞视界高斯曲率的解析表达式,分析了NUT参数对视界的赤道周长和极向周长的影响,研究了将其视界嵌入欧几里得空间的问题。结果表明这种黑洞的视界具有其它黑洞所没有的几何性质。In this article, the Gaussian curvature of the event horizon of a Kerr-NUT black hole is given. The effect of NUT parameter on the equatorial circumference and the polar circumference of the event horizon is analysed. The problem of embedding the surface in Euclidean 3-space is examined. It is shown that the event horizon of a Kerr-NUT black hole has the geometrical properties which other black holes do not porsess.
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