On the Norm of the Beurling–ahlfors Transformation: Summary of Changes from First Version (12/28/07) to Second Version (2/19/08), and Comments on Dimension 4

Abstract

Sections 12, 13, and 14 in the second version are new, and the numbering of the other sections has changed accordingly. We have also added a comment on weakened martingale conditions (16) in Section 3. In Theorem 1, it is stated now that the result holds not only for p−norms but for Burkholder’s functions u. Of course, the method of proof is that one first… (More)

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@inproceedings{Hinkkanen2008OnTN, title={On the Norm of the Beurling–ahlfors Transformation: Summary of Changes from First Version (12/28/07) to Second Version (2/19/08), and Comments on Dimension 4}, author={Aimo Hinkkanen}, year={2008} }