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arXiv · 2407.21318

Towards refined curve counting on the Enriques surface I: K-theoretic refinements

Georg Oberdieck
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Abstract

We conjecture an explicit formula for the $K$-theoretically refined Vafa-Witten invariants of the Enriques surface. By a wall-crossing argument the conjecture is equivalent to a new conjectural formula for the K-theoretically refined Pandharipande-Thomas invariants of the local Enriques surface. Evidence for the conjecture is given in several cases. We also comment on the case of K3 surfaces previously studied by Thomas.

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Georg Oberdieck. 2024-07-31. Towards refined curve counting on the Enriques surface I: K-theoretic refinements. https://arxiv.org/abs/2407.21318

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