F-regularity does not deform

DOI10.1353/ajm.1999.0029zbMath0946.13002arXivmath/0209242OpenAlexW2143133960MaRDI QIDQ4264548

Anurag K. Singh

Publication date: 1 December 1999

Published in: American Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/math/0209242

zbMATH Keywords

tight closureF-regular ringWeil divisorF-pure ring

Mathematics Subject Classification ID

Characteristic (p) methods (Frobenius endomorphism) and reduction to characteristic (p); tight closure (13A35) Deformations and infinitesimal methods in commutative ring theory (13D10)

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