Algebraic subgroups of the plane Cremona group over a perfect field
Authors: Julia Schneider ; Susanna Zimmermann
0000-0002-2372-2220##NULL
Julia Schneider;Susanna Zimmermann
We show that any infinite algebraic subgroup of the plane Cremona group over
a perfect field is contained in a maximal algebraic subgroup of the plane
Cremona group. We classify the maximal groups, and their subgroups of rational
points, up to conjugacy by a birational map.