Semicontinuity of Singularity Invariants in Families of Formal Power Series

DOI10.1007/978-3-030-61958-9_10zbMath1487.14008arXiv1912.05263OpenAlexW2995362502MaRDI QIDQ5011669

Gerhard Pfister, Gert-Martin Greuel

Publication date: 27 August 2021

Published in: Trends in Mathematics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1912.05263

zbMATH Keywords

semicontinuityMilnor numberformal power seriesdeterminacyTjurina numbercompleted tensor productHenselian tensor product

Mathematics Subject Classification ID

Singularities in algebraic geometry (14B05) Formal power series rings (13F25) Deformations of singularities (14B07) Étale and flat extensions; Henselization; Artin approximation (13B40) Completion of commutative rings (13B35)

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Singularities. Abstracts from the workshop held September 26 -- October 2, 2021 (hybrid meeting), On delta for parameterized curve singularities, Using semicontinuity for standard bases computations

Uses Software

• SINGULAR

Cites Work

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