2 papers
math.AG2020
On Isotropy Group of Danielewski Surfaces
Rene Baltazar, Marcelo Veloso
In the present work we consider differential rings of the form where is a Danielewski surface and is a locally nilpotent derivation on $\mathcal B…
math.AC2018
Rings of constants of linear derivations on Fermat rings
Marcelo Oliveira Veloso, Ivan Shestakov
In this paper we characterize all the linear -derivations of the Fermat ring. We show that the Fermat ring has linear -derivations with trivial ring of cons…