标题： WANDs of the Black Ring 显示英文标题

标题： WANDs of the Black Ring

摘要： 各种Weyl张量代数类型的必要条件被确定。 这些条件随后用于找到黑洞环解的Weyl对齐 null 方向。 表明黑洞环解在代数上是特殊的，属于类型 I_i，而在视界局部类型为 II。 一个特例 - Myers-Perry 解 - 属于类型 D。 显示英文摘要

摘要： Necessary conditions for various algebraic types of the Weyl tensor are determined. These conditions are then used to find Weyl aligned null directions for the black ring solution. It is shown that the black ring solution is algebraically special, of type I_i, while locally on the horizon the type is II. One exceptional subclass - the Myers-Perry solution - is of type D.