Discrete D-branes in AdS 3 and in the 2 d black hole

  title={Discrete D-branes in AdS 3 and in the 2 d black hole},
  author={Sylvain Ribault},
I show how theAdS2 D-branes in the Euclidean AdS3 string theory are related to the continuous D-branes in Liouville theory. I then propose new discrete D-branes in the Euclidean AdS3 which correspond to the discrete D-branes in Liouville theo ry. These new D-branes satisfy the appropriate shift equations. They give rise to two famil ies of discrete D-branes in the 2d black hole, which preserve different symmetries. 

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