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Inner Functions and Isometries
Journal article   Open access   Peer reviewed

Inner Functions and Isometries

Canadian mathematical bulletin, Vol.18(3), pp.383-385
08/1975
DOI: 10.4153/CMB-1975-070-3
url
https://doi.org/10.4153/CMB-1975-070-3View
Published (Version of record) Open Access

Abstract

Our objective in this note is to prove a theorem about the spectral behavior of certain multiplication operators. It was motivated by and yields an extension of part of a theorem of Lumer [3] concerning the possibility of imbedding the classical Hardy spaces in abstract ones.

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