DUALITIES OF LORENTZIAN AND EUCLIDEAN BLACK-HOLES IN 2-DIMENSIONAL STRING GENERATED MODELS

CADONI, MARIANO;MIGNEMI, SALVATORE

1995-01-01

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Abstract

We discuss the properties of Lorentzian and Euclidean black hole solutions of a generalized two-dimensional dilaton gravity action containing a modulus field, which arises from the compactification of heterotic string models. The duality symmetries of these solutions are also investigated.