On automorphisms of Danielewski surfaces
Abstract
We develop techniques for computing the AK invariant of a domain with arbitrary characteristic. We use these techniques to describe for any field K the automorphism group of K[X,Y,Z]/(Xn Y - Z2 - h(X)Z), where h(0) 0 and n ≥ 2, as well as the isomorphism classes of these algebras.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.