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A note on Mustaţă's computation of multiplier ideals of hyperplane arrangements

Author: Zach Teitler
Journal: Proc. Amer. Math. Soc. 136 (2008), 1575-1579
MSC (2000): Primary 14B05; Secondary 52C35
Published electronically: November 30, 2007
MathSciNet review: 2373586
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Abstract: In 2006, M. Mustaţă used jet schemes to compute the multiplier ideals of reduced hyperplane arrangements. We give a simpler proof using a log resolution and generalize to non-reduced arrangements. By applying the idea of wonderful models introduced by De Concini-Procesi in 1995, we also simplify the result. Indeed, Mustaţă's result expresses the multiplier ideal as an intersection, and our result uses (generally) fewer terms in the intersection.

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Zach Teitler
Affiliation: Department of Mathematics, Southeastern Louisiana University, SLU 10687, Hammond, Louisiana 70401

Keywords: Multiplier ideals, hyperplane arrangements, wonderful models
Received by editor(s): October 12, 2006
Received by editor(s) in revised form: March 1, 2007
Published electronically: November 30, 2007
Communicated by: Bernd Ulrich
Article copyright: © Copyright 2007 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.

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