Unitary dilation for polar decompositions of p-hyponormal operators

Muneo Chō¹, Tadasi Huruya², Kôtarô Tanahashi³
Banach Center Publ. 67 (2005), 139-144
doi:10.4064/bc67-0-11

Abstract: 

In this paper, we introduce the angular cutting and the generalized polar symbols of a $p$-hyponormal operator $T$ in the case where $U$ of the polar decomposition $T = U|T|$ is not unitary and study spectral properties of it.

MSC (2000): Primary 47B20; Secondary 47A10.
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Department of Mathematics
Kanagawa University
Yokohama 221-8686, Japan
Faculty of Education and
Human Sciences
Niigata University
Niigata 950-2181, Japan
Department of Mathematics
Tohoku Pharmaceutical University
Sendai 981-8558, Japan