Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, Epiciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Derivations of negative degree on quasihomogeneous isolated complete intersection singularities.

Abstract : J. Wahl conjectured that every quasihomogeneous isolated normal singularity admits a positive grading for which there are no derivations of negative weighted degree. We confirm his conjecture for quasihomogeneous isolated complete intersection singularities of either order at least $3$ or embedding dimension at most $5$. For each embedding dimension larger than $5$ (and each dimension larger than $3$), we give a counter-example to Wahl's conjecture.
Document type :
Preprints, Working Papers, ...
Complete list of metadata

Cited literature [8 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00960092
Contributor : Michel Granger Connect in order to contact the contributor
Submitted on : Monday, March 17, 2014 - 3:49:12 PM
Last modification on : Wednesday, October 20, 2021 - 3:18:47 AM
Long-term archiving on: : Tuesday, June 17, 2014 - 12:40:34 PM

File

negder.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00960092, version 1

Collections

Citation

Michel Granger, Mathias Schulze. Derivations of negative degree on quasihomogeneous isolated complete intersection singularities.. 2014. ⟨hal-00960092⟩

Share

Metrics

Record views

135

Files downloads

265