EmptySpace Generalization of the Schwarzschild Metric
Abstract
A new class of emptyspace metrics is obtained, one member of this class being a natural generalization of the Schwarzschild metric. This latter metric contains one arbitrary parameter in addition to the mass. The entire class is the set of metrics which are algebraically specialized (contain multipleprinciple null vectors) such that the propagation vector is not proportional to a gradient. These metrics belong to the Petrov class type I degenerate.
 Publication:

Journal of Mathematical Physics
 Pub Date:
 July 1963
 DOI:
 10.1063/1.1704018
 Bibcode:
 1963JMP.....4..915N