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arXiv · 1110.5687

Estimates for F-jumping numbers and bounds for Hartshorne-Speiser-Lyubeznik numbers

Mircea Mustata·Wenliang Zhang
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Abstract

Given an ideal J on a smooth variety in characteristic zero, we estimate the F-jumping numbers of the reductions of J to positive characteristic in terms of the jumping numbers of J and the characteristic. We apply one of our estimates to bound the Hartshorne-Speiser-Lyubeznik invariant for the reduction to positive characteristic of a hypersurface singularity.

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Mircea Mustata, Wenliang Zhang. 2012-11-03. Estimates for F-jumping numbers and bounds for Hartshorne-Speiser-Lyubeznik numbers. https://doi.org/10.1215/00277630-2077035

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