A closed formula for the structure constants in the SL(2,C)/SU(2) WZNW model is derived by a method previously used in Liouville theory. With the help of a reflection amplitude that follows from theâ€¦ (More)

The bootstrap for Liouville theory with conformally invariant boundary conditions will be discussed. After reviewing some results on oneand boundary two-point functions we discuss some analogue ofâ€¦ (More)

In this work we propose an exact microscopic description of maximally symmetric branes in a Euclidean AdS 3 background. As shown by Bachas and Petropoulos, the most important such branes areâ€¦ (More)

We investigate two classes of D-branes in 2-d string theory, corresponding to extended and localized branes, respectively. We compute the string emission during tachyon condensation and reinterpretâ€¦ (More)

Liouville field theory is considered on domains with conformally invariant boundary conditions. We present an explicit expression for the three point function of boundary fields in terms of theâ€¦ (More)

We try to develop a coherent picture of Liouville theory as a two-dimensional conformal field theory that takes into account the perspectives of path-integral approach, bootstrap, canonicalâ€¦ (More)

The recently proposed expression for the general three point function of exponential fields in quantum Liouville theory on the sphere is considered. By exploiting locality or crossing symmetry in theâ€¦ (More)

We prove that arbitrary correlation functions of the H 3 -WZNW model on a sphere have a simple expression in terms of Liouville theory correl ation functions. This is based on the correspondenceâ€¦ (More)

One of the main motivations for studying integrable lattice models is their role as a lattice regularization of quantum field theories in continuous spaceâ€“time. Integrable nonlinear sigma models areâ€¦ (More)

Many qualitatively new features of WZNW models associated to noncompact cosets are due to zero modes with continuous spectrum. Insight may be gained by reducing the theory to its zero-mode sector,â€¦ (More)