B. Wang et Rk. Su, TESTING A STABILITY CONJECTURE OF CAUCHY HORIZONS IN 3-DIMENSIONAL BLACK-HOLES, Physical review. D. Particles and fields, 53(4), 1996, pp. 1950-1954
The stability conjecture of Cauchy horizons of black holes suggested b
y Helliwell and Konkowski is used to investigate the (2+1)-dimensional
(3D) black holes under perturbations of infalling null dust and of bo
th outgoing and infalling null dust. The results given by this conject
ure agree with that from the mass inflation scenario for 3D black hole
s. For 3D black holes, we show that the Cauchy horizon is unstable and
the corresponding singularities exist.