Signature dynamics in general relativity

Dereli, Tekin and Tucker, Robin (1993) Signature dynamics in general relativity. Classical and Quantum Gravity, 10 (2). pp. 365-373. ISSN 0264-9381

Abstract

The authors describe classical models of gravitation interacting with scalar fields whose solutions involve degenerate metrics. Some of these solutions exhibit transitions from a Euclidean domain to a Lorentzian spacetime corresponding to a spatially flat Robertson-Walker cosmology.