W‐gauge structures and their anomalies: An algebraic approach

  title={W‐gauge structures and their anomalies: An algebraic approach},
  author={Daniela Gărăjeu and R. Grimm and S. Lazzarini},
  journal={Journal of Mathematical Physics},
Starting from flat two‐dimensional gauge potentials we propose the notion of W‐gauge structure in terms of a nilpotent Becchi–Rouet–Stora (BRS) differential algebra. The decomposition of the underlying Lie algebra with respect to an SL(2) subalgebra is crucial for the discussion of conformal covariance, in particular the appearance of a projective connection. Different SL(2) embeddings lead to different W‐gauge structures. We present a general soldering procedure which allows one to express… Expand
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