视界
黑洞(网络)
物理
白洞
引力奇点
能源状况
视在地平线
非奇异黑洞模型
猜想
广义相对论
经典力学
旋转黑洞
合并(版本控制)
施瓦西半径
霍金辐射
数值相对论
地平线
理论物理学
重力崩塌
万有引力
带电黑洞
数学
量子力学
纯数学
角动量
计算机科学
天文
路由协议
链路状态路由协议
布线(电子设计自动化)
计算机网络
情报检索
摘要
It is assumed that the singularities which occur in gravitational collapse are not visible from outside but are hidden behind an event horizon. This means that one can still predict the future outside the event horizon. A black hole on a spacelike surface is defined to be a connected component of the region of the surface bounded by the event horizon. As time increase, black holes may merge together but can never bifurcate. A black hole would be expected to settle down to a stationary state. It is shown that a stationary black hole must have topologically spherical boundary and must be axisymmetric if it is rotating. These results together with those of Israel and Carter go most of the way towards establishing the conjecture that any stationary black hole is a Kerr solution. Using this conjecture and the result that the surface area of black holes can never decrease, one can place certain limits on the amount of energy that can be extracted from black holes.
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