This space is called a Schwarzschild Radius.

这个空间叫做史瓦西半径。

If the rotation is zero, the black hole is perfectly round and the solution is identical to the Schwarzschild solution.

如果旋转为零，则黑洞是完美的圆形，解与 Schwarzschild 解相同。

They could, in fact, be described by a particular solution of Einstein's equations that had been known since 1917, found by Karl Schwarzschild shortly after the discovery of general relativity.

事实上，它们可以用爱因斯坦方程的一个特解来描述，该方程自 1917 年以来就为人所知，由卡尔·史瓦西 (Karl Schwarzschild) 在广义相对论发现后不久发现。