Space-time singularities and the axion in the Poincare coset models ISO(2,1)/H

Abstract

By promoting an invariant subgroup $H$ of $ISO(2,1)$ to a gauge symmetry of a WZWN action, we obtain the description of a bosonic string moving either in a curved 4-dimensional space--time with an axion field and curvature singularities or in 3-dimensional Minkowski space--time.

LaTeX, 6 pages plus 2 figures in a separate postscript file, a LaTeX error fixed

References in corpus (1)

• Global Analysis of New Gravitational Singularities in String and Particle Theories

Cited by in corpus (3)

• Axion stars in MGD background
• The Poincare' coset models ISO(d-1,1)/R^n and T-duality
• Three dimensional gravity from ISO(2,1) coset models