Subnormality and cyclicity
Franciszek Hugon Szafraniec
Banach Center Publications, Tome 68 (2005), p. 349-356 / Harvested from The Polish Digital Mathematics Library
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For an unbounded operator S the question whether its subnormality can be built up from that of every Sf, the restriction of S to a cyclic space generated by f in the domain of S, is analyzed. Though the question at large has been left open some partial results are presented and a possible way to prove it is suggested as well.

Publié le : 2005-01-01
EUDML-ID : urn:eudml:doc:282049 
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     author = {Franciszek Hugon Szafraniec},
     title = {Subnormality and cyclicity},
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     volume = {68},
     year = {2005},
     pages = {349-356},
     zbl = {1080.47024},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc67-0-27}
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Franciszek Hugon Szafraniec. Subnormality and cyclicity. Banach Center Publications, Tome 68 (2005) pp. 349-356. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc67-0-27/