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# Distinguished Varieties

@inproceedings{Agler2005DistinguishedV, title={Distinguished Varieties}, author={Jim Agler and John E. McCarthy}, year={2005} }

- Published 2005

A distinguished variety is a variety that exits the bidisk through the distinguished boundary. We show that Andô’s inequality for commuting matrix contractions can be sharpened to looking at the maximum modulus on a distinguished variety, not the whole bidisk. We show that uniqueness sets for extremal Pick problems on the bidisk always contain a distinguished variety.

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