Document Type

Article

Department

​Mathematics

Publication Date

10-2010

Comments

Author's post-print. This version is provided in the Trinity College Digital Repository according to the publisher's distribution policies.

Published version accessible from: http://www.sciencedirect.com/science/article/pii/S0001870811003136

Advances in Mathematics Volume 229, Issue 1, 15 January 2012, Pages 408–441.

Included in

Mathematics Commons

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