Locally tame plane polynomial automorphisms
classification
🧮 math.AG
math.AC
keywords
automorphismspolynomialtamenessdomaineveryexamplesfreegenerated
read the original abstract
For automorphisms of a polynomial ring in two variables over a domain R, we show that local tameness implies global tameness provided that every 2-generated invertible R-module is free. We give many examples illustrating this property.
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