title: Is equilibrium of aligned Kerr black holes possible?
abstract: We show that equilibrium of two Kerr black holes can be achieved by placing between them a relativistic disk or a third Kerr black hole, the latter case demonstrating the existence of equilibrium configurations in the purely black hole systems with the number of constituents more than two.
authors.affiliation: Departamento de Física, Centro de Investigación y de Estudios Avanzados del IPN, A.P. 14-740, 07000 México D.F., Mexico. vsmanko@fis.cinevestav.mx
authors.forename: V S
authors.initials: VS
authors.lastname: Manko
authors.forename: E
authors.initials: E
authors.lastname: Ruiz
authors.forename: O V
authors.initials: OV
authors.lastname: Manko