Source: Duke Math. J. Volume 128, Number 3
(2005), 393-471.
Given a chiral vertex operator algebra satisfying a suitable
finiteness condition with semisimplicity of the zero-mode algebra
as well as a regularity condition for induced modules, we
construct conformal field theories over the projective line and
prove the factorization theorem. We appropriately generalize the
arguments in [TUY] so that we are able to define sheaves of
conformal blocks and study them in detail.
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