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arXiv · 2201.04097

$K$-polystability of smooth Fano $\text{SL}_2$-threefolds

Jack Rogers
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Abstract

We prove the $K$-polystability of all smooth complex Fano threefolds admitting an effective action of $\text{SL}_2$ but not of a 2-torus or 3-torus. In particular, the existence of K\"{a}hler-Einstein metrics on varieties in the families (1.10), (1.15), (1.16), (1.17), (2.21), (2.27), (2.32), (3.13), (3.17), (3.25) and (4.6) of the Mori-Mukai classification of smooth Fano threefolds is proved.

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Jack Rogers. 2022-01-11. $K$-polystability of smooth Fano $\text{SL}_2$-threefolds. https://arxiv.org/abs/2201.04097

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