On the Lagrangian Realization of Non-Critical ${\cal W}$ -Strings

preprint1994arXivOpen access

A large class of non-critical string theories with extended worldsheet gauge symmetry are described by two coupled, gauged Wess-Zumino-Witten Models. We give a detailed analysis of the gauge invariant action and in particular the gauge fixing procedure and the resulting BRST symmetries. The results are applied to the example of ${\cal W}_3$ strings.

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On the Lagrangian Realization of Non-Critical ${\cal W}$ -Strings

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On the Lagrangian Realization of Non-Critical W{\cal W}W-Strings

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On the Lagrangian Realization of Non-Critical ${\cal W}$ -Strings