On the Symmetry Algebra of the Discrete States in $d<2$ Closed String Theory

Abstract

The Symmetry charges associated with the Lian-Zuckerman states for $d<2$ closed string theory are constructed. Unlike in the open string case, it is shown here that the symmetry charges commute among themselves and act trivially on all the physical states.

13 pages, Plain Tex, IC/93/13, UG-1/93

References in corpus (4)

• BRST Analysis of Physical States for 2D (Super) Gravity Coupled to (Super) Conformal Matter
• Ground Rings and Their Modules in 2D Gravity with $c\le 1$ Matter
• Bosonization of Nonrelativistic Fermions and W-infinity Algebra
• States of non-zero ghost number in $c<1$ matter coupled to 2d gravity

Cited by in corpus (4)

• On the Twisted $N=2$ Superconformal Structure in $2d$ Gravity Coupled to Matter
• BRST Cohomology Ring in ${\hat{c}}_M<1$ NSR String Theory
• Observations on the Topological Structure in 2d Gravity Coupled to Minimal Matter
• $c_M<1$ String Theory as a Constrained Topological Sigma Model