Abstract
We consider worldsheet string theory on 
N
orbifolds of AdS3 associated with conical singularities.
If the orbifold action includes
a similar twist of S3, supersymmetry is preserved,
and there is a moduli space of vacua arising from
blowup modes of the orbifold singularity. We exhibit the spectrum,
including the properties of
twisted sectors and states obtained by fractional spectral flow.
A subalgebra of the spacetime superconformal symmetry
remains intact after the N quotient,
and serves as the spacetime symmetry algebra
of the orbifold.
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