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arXiv · 2602.09602

A mirror theorem for partial flag bundles

Ionut Ciocan-Fontanine·Yuki Koto
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Abstract

We construct a family of points on the Lagrangian cone of a partial flag bundle associated to a (possibly non-split) vector bundle from any Weyl-invariant $I$-function of a prequotient. This result can be seen as the nonabelian analogue of the mirror theorem for projective bundles in arXiv:2307.03696, and generalizes Oh's mirror theorem for split partial flag bundles in arXiv:1607.08326.

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Ionut Ciocan-Fontanine, Yuki Koto. 2026-02-10. A mirror theorem for partial flag bundles. https://arxiv.org/abs/2602.09602

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