A Remark on $\mathrm{Pin}(2)$-equivariant Floer homology

Matthew Stoffregen

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arXiv · 1605.00331

A Remark on $\mathrm{Pin}(2)$-equivariant Floer homology

Matthew Stoffregen

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Abstract

In this remark, we show how the monopole Fr{\o}yshov invariant, as well as the analogues of the Involutive Heegaard Floer correction terms $\underline{d},\overline{d}$, are related to the $\mathrm{Pin}(2)$-equivariant Floer homology $\mathit{SWFH}^G_*$. We show that the only interesting correction terms of a $\mathrm{Pin}(2)$-space are those coming from the subgroups $\mathbb{Z}/4$, $S^1$, and $\mathrm{Pin}(2)$ itself.

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Matthew Stoffregen. 2016-05-02. A Remark on $\mathrm{Pin}(2)$-equivariant Floer homology. https://arxiv.org/abs/1605.00331

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