AK-invariant, some conjectures, examples and counterexamples

DOI10.4064/ap76-1-14zbMath0994.13004OpenAlexW2065140453WikidataQ123221575 ScholiaQ123221575MaRDI QIDQ2724127

Leonid G. Makar-Limanov

Publication date: 9 July 2001

Published in: Annales Polonici Mathematici (Search for Journal in Brave)

Full work available at URL: https://semanticscholar.org/paper/ae340f44ad8d31c5995efbba03de4f20fb428aa9

zbMATH Keywords

AK-invariantlocally nilpotent derivationcancellation problemintersection of fixed ringsring of absolute constants

Mathematics Subject Classification ID

Group actions on varieties or schemes (quotients) (14L30) Polynomial rings and ideals; rings of integer-valued polynomials (13F20) Actions of groups on commutative rings; invariant theory (13A50) Derivations and commutative rings (13N15) Automorphisms of surfaces and higher-dimensional varieties (14J50)

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On \(\mathbb C\)-fibrations over projective curves ⋮ Nonstability of the AK invariant

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