A note on rings of constants of derivations in integral domains

Tom 122 / 2011

Piotr Jędrzejewicz Colloquium Mathematicum 122 (2011), 241-245 MSC: Primary 13N15; Secondary 13B22. DOI: 10.4064/cm122-2-9


We observe that the characterization of rings of constants of derivations in characteristic zero as algebraically closed subrings also holds in positive characteristic after some natural adaptation. We also present a characterization of such rings in terms of maximality in some families of rings.


  • Piotr JędrzejewiczFaculty of Mathematics and Computer Science
    Nicolaus Copernicus University
    87-100 Toruń, Poland

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