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arXiv · 2603.27842

$Pin^{-}(2)$ Bauer-Furuta invariants

Hao Wu
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Abstract

Adapting Bauer and Furuta's constructions of the refinement of the Seiberg-Witten invariants, we establish the analogous stable cohomotopy refinement of the $Pin^{-}(2)$ monopole invariants proposed by Nakamura \cite{nakamura2015pin}, and give the corresponding connected sum formula.

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Hao Wu. 2026-03-29. $Pin^{-}(2)$ Bauer-Furuta invariants. https://arxiv.org/abs/2603.27842

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