标题： 克尔-纽曼时空全局结构的完整分析 显示英文标题

标题： Toward a Complete Analysis of the Global Structure of Kerr-Newman Spacetime

摘要： 对卡特对Kerr-Newman时空对称轴上全局结构的部分研究进行了补充。 即，研究了\theta = const 的类时子流形，从对称轴一直延伸到赤道平面，通过引入一个与通常的布伊尔-林德奎斯特时间坐标略有不同的新时间坐标。 结果表明，\theta =\theta _0 (0\leq \theta _0 <\pi /2) 子流形的最大解析延拓与Carter首次研究的对称轴相同，而\theta =\pi /2 赤道平面的拓扑结构与Reissner-Nordstrom时空相同。这种方法在其他引力理论中的Kerr-Newman型黑洞解中的普遍适用性也进行了讨论。 显示英文摘要

摘要： An attempt is made to supplement Carter's partial investigation of the global structure of Kerr-Newman spacetime on the symmetry axis. Namely, the global structure of \theta = const. timelike submanifolds of Kerr-Newman metric starting from the symmetry axis all the way down to the equatorial plane are studied by introducing a new time coordinate slightly different from the usual Boyer-Lindquist time coordinate. It turns out that the maximal anaytic extension of \theta = \theta_0 (0 \leq \theta_0 < \pi/2) submanifolds is the same as that of the symmetry axis first studied by Carter whereas \theta = \pi/2 equatorial plane has the topology identical to that of the Reissner-Nordstrom spacetime. General applicability of this method to Kerr-Newman-type black hole solutions in other gravity theories is discussed as well.