Pełnotekstowe zasoby PLDML oraz innych baz dziedzinowych są już dostępne w nowej Bibliotece Nauki.
Zapraszamy na https://bibliotekanauki.pl
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 3

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Content available remote

Outers for noncommutative $H^{p}$ revisited

100%
Blecher D., Labuschagne L.
Studia Mathematica
|
2013
|
tom 217
|
nr 3
265-287
EN
We continue our study of outer elements of the noncommutative $H^{p}$ spaces associated with Arveson's subdiagonal algebras. We extend our generalized inner-outer factorization theorem, and our characterization of outer elements, to include the case of elements with zero determinant. In addition, we make several further contributions to the theory of outers. For example, we generalize the classical fact that outers in $H^{p}$ actually satisfy the stronger condition that there exist aₙ ∈ A with haₙ ∈ Ball(A) and haₙ → 1 in p-norm.
2
Content available remote

Noncommutative function theory and unique extensions

100%
Blecher D., Labuschagne L.
Studia Mathematica
|
2007
|
tom 178
|
nr 2
177-195
EN
We generalize, to the setting of Arveson's maximal subdiagonal subalgebras of finite von Neumann algebras, the Szegő $L^{p}$-distance estimate and classical theorems of F. and M. Riesz, Gleason and Whitney, and Kolmogorov. As a byproduct, this completes the noncommutative analog of the famous cycle of theorems characterizing the function algebraic generalizations of $H^{∞}$ from the 1960's. A sample of our other results: we prove a Kaplansky density result for a large class of these algebras, and give a necessary condition for every completely contractive homomorphism on a unital subalgebra of a C*-algebra to have a unique completely positive extension.
3
Content available remote

Compactness properties for multiplication operators on von Neumann algebras and their preduals

81%
Goldstein S., Jarchow H., Labuschagne L.
Banach Center Publications
|
2006
|
tom 73
|
nr 1
177-185
EN
We consider compactness, weak compactness and complete continuity for multiplication operators on von Neumann algebras and their preduals.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.