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arXiv · hep-th/9805189

On Type IIB Vacua With Varying Coupling Constant

P. Berglund·A. Klemm·P. Mayr·S. Theisen
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Abstract

We describe type IIB compactifications with varying coupling constant in d=6,7,8,9 dimensions, where part of the ten-dimensional SL(2,Z) symmetry is broken by a background with Gamma_0(n) or Gamma(n) monodromy for n=2,3,4. This extends the known class of F-theory vacua to theories which are dual to heterotic compactifications with reduced rank. On compactifying on a further torus, we obtain a description of the heterotic moduli space of G bundles over elliptically fibered manifolds without vector structure in terms of complex geometries.

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P. Berglund, A. Klemm, P. Mayr, S. Theisen. 1998-05-27. On Type IIB Vacua With Varying Coupling Constant. https://doi.org/10.1016/s0550-3213(99)00420-4

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