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arXiv · 1902.00372

Exotic Ga-quotients of SL$_2 \times \mathbb{A}^1$

Adrien Dubouloz
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Abstract

Every deformed Koras-Russell threefold of the first kind $Y = \left\{ x^{n}z=y^{m}-t^{r} + xh(x,y,t)\right\}$ in $\mathbb{A}^{4}$ is the algebraic quotient of proper Zariski locally trivial $\mathbb{G}_a$-action on $\mathrm{SL}_2 \times \mathbb{A}^1$.

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Adrien Dubouloz. 2019-02-01. Exotic Ga-quotients of SL$_2 \times \mathbb{A}^1$. https://arxiv.org/abs/1902.00372

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