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Special Geometry and Twisted Moduli in Orbifold Theories with Continuous Wilson Lines
Target space duality symmetries, which acts on K\"ahler and continuous Wilson
line moduli, of a () 2-dimensional subspace of the moduli
space of orbifold compactification are modified to include twisted moduli.
These spaces described by the cosets are
K\"ahler, a fact which is exploited in deriving the extension of tree
level duality transformation to include higher orders of the twisted moduli.
Also, restrictions on these higher order terms are derived.Comment: 13 page
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