Instantons and Khovanov homology in $\mathbb{RP}^3$
Abstract: We study the instanton Floer homology for links in $\mathbb{RP}3$ and compute the second page of Kronheimer--Mrowka's spectral sequence. As an application, we show that Khovanov homology detects the unknot and the projective unknot in $\mathbb{RP}3$.
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