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\((0,2)\) target-space duality, CICYs and reflexive sheaves. (English) Zbl 0920.14017
Summary: It is shown that the recently proposed target-space duality for \((0,2)\) models is not limited to models admitting a Landau-Ginzburg description. By studying some generic examples it is established for the broader class of vector bundles over complete intersections in toric varieties. Instead of sharing a common Landau-Ginzburg locus, a pair of dual models agrees in more general non-geometric phases. The mathematical tools for treating reflexive sheaves are provided as well.

14J32 Calabi-Yau manifolds (algebro-geometric aspects)
81T30 String and superstring theories; other extended objects (e.g., branes) in quantum field theory
32S60 Stratifications; constructible sheaves; intersection cohomology (complex-analytic aspects)
14M10 Complete intersections
14M25 Toric varieties, Newton polyhedra, Okounkov bodies
Full Text: DOI arXiv
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