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research
Compressions and Pinchings
Authors
Jean-Christophe Bourin
Publication date
22 November 2002
Publisher
View
on
arXiv
Abstract
There exist operators
A
A
A
such that : for any sequence of contractions
{
A
n
}
\{A_n\}
{
A
n
}
, there is a total sequence of mutually orthogonal projections
{
E
n
}
\{E_n\}
{
E
n
}
such that
Σ
E
n
A
E
n
=
⨁
A
n
\Sigma E_nAE_n=\bigoplus A_n
Σ
E
n
A
E
n
=
⨁
A
n
.Comment: 11 page
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oai:HAL:hal-00101180v1
Last time updated on 14/04/2021