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math.AG2021★ 1 cited
Tits-type alternative for certain groups acting on algebraic surfaces
Ivan Arzhantsev, Mikhail Zaidenberg
A theorem of Cantat and Urech says that an analog of the classical Tits alternative holds for the group of birational automorphisms of a compact complex Kaehler surface. We establi…
math.AG2021★ 2 cited
Limit points and additive group actions
Ivan Arzhantsev
We show that an effective action of the one-dimensional torus on a normal affine algebraic variety can be extended to an effective action of a semi-direct produc…