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Cartesian form of Putnam's inequality for doubly commuting hyponormal n-tuples
Journal article   Open access   Peer reviewed

Cartesian form of Putnam's inequality for doubly commuting hyponormal n-tuples

M Cho, R E Curto, T Huruya and W Zelazko
Indiana University mathematics journal, Vol.49(4), pp.1437-1448
12/01/2000
DOI: 10.1512/iumj.2000.49.1766
url
https://doi.org/10.1512/iumj.2000.49.1766View
Published (Version of record) Open Access

Abstract

We obtain a Cartesian form of Putnam's inequality for doubly commuting hyponormal n-tuples, and we establish new relations between the Taylor and Xia spectra of such n-tuples.
Mathematics Physical Sciences Science & Technology

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