Sous-normalité jointe non bornée et applications
Olivier Demanze
Studia Mathematica, Tome 166 (2005), p. 227-237 / Harvested from The Polish Digital Mathematics Library
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T. Trent gave a new characterization of subnormality for an operator on a Hilbert space. T. Bînzar and D. Păunescu generalized this condition to commuting triples of operators. Here, we give an n-variable unbounded version of the above results. Theorems of this kind have also been obtained by Z. J. Jabłoński and J. Stochel.

Publié le : 2005-01-01
EUDML-ID : urn:eudml:doc:285136 
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Olivier Demanze. Sous-normalité jointe non bornée et applications. Studia Mathematica, Tome 166 (2005) pp. 227-237. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm171-3-2/