On the spectral multiplicity of a direct sum of operators
M. T. Karaev
Colloquium Mathematicae, Tome 106 (2006), p. 105-112 / Harvested from The Polish Digital Mathematics Library
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We calculate the spectral multiplicity of the direct sum T⊕ A of a weighted shift operator T on a Banach space Y which is continuously embedded in lp and a suitable bounded linear operator A on a Banach space X.

Publié le : 2006-01-01
EUDML-ID : urn:eudml:doc:284012 
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     title = {On the spectral multiplicity of a direct sum of operators},
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     volume = {106},
     year = {2006},
     pages = {105-112},
     zbl = {1100.47030},
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M. T. Karaev. On the spectral multiplicity of a direct sum of operators. Colloquium Mathematicae, Tome 106 (2006) pp. 105-112. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm104-1-7/