We examine the evaporation of twoâ€“dimensional black holes, the classical spaceâ€“times of which are extended geometries, like for example the twoâ€“dimensional section of the extremal Reissnerâ€“Nordstromâ€¦ (More)

Magnetically charged dilatonic black holes have a perturbatively infinite ground state de-generacy associated with an infinite volume throat region of the geometry. A simple argument based onâ€¦ (More)

We introduce a large class of modifications of the standard lagrangian for two dimensional dilaton gravity, whose general solutions are nonsingular black holes. A subclass of these lagrangians haveâ€¦ (More)