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Existence of non-subnormal polynomially hyponormal operators

Author(s): Raúl E. Curto; Mihai Putinar
Journal: Bull. Amer. Math. Soc. 25 (1991), 373-378.
MSC (1985): Primary 47B20, 47A65, 44A60; Secondary 46A22, 52A07
MathSciNet review: 1091568
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Additional Information:

DOI: 10.1090/S0273-0979-1991-16079-9
PII: S 0273-0979(1991)16079-9

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