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arxiv: hep-th/9511171 · v1 · submitted 1995-11-23 · ✦ hep-th

Enhanced Gauge Symmetries and Calabi-Yau Threefolds

classification ✦ hep-th
keywords stringcalabi-yaugaugeheteroticsymmetriestypeappearcase
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We consider the general case of a type IIA string compactified on a Calabi-Yau manifold which has a heterotic dual description. It is shown that the nonabelian gauge symmetries which can appear nonperturbatively in the type II string but which are understood perturbatively in the heterotic string are purely a result of string-string duality in six dimensions. We illustrate this with some examples.

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  1. Nil-Equivariant Tropological Sigma Models on Filtered Geometries

    hep-th 2025-07 unverdicted novelty 6.0

    Tropological sigma models on 4D targets are defined on filtered manifolds with nilpotent Engel algebra symmetries and conjectured to correspond to filtered Gromov-Witten invariants.