On singularities arising from the contraction of the minimal section of a ruled surface

DOI10.1007/BF01303041zbMath0705.14036OpenAlexW2093850516MaRDI QIDQ917635

Masataka Tomari, Fumio Hidaka

Publication date: 1989

Published in: Manuscripta Mathematica (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/155443

zbMATH Keywords

Frobenius actioncontraction of the minimal section of a ruled surfaceextension classGorensteinness of two-dimensional singularity

Mathematics Subject Classification ID

Varieties defined by ring conditions (factorial, Cohen-Macaulay, seminormal) (14M05) Singularities in algebraic geometry (14B05) Singularities of surfaces or higher-dimensional varieties (14J17)

Related Items

Filtered rings, filtered blowing-ups and normal two-dimensional singularities with ``star-shaped resolution

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