Jezik: | Angleški jezik |
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Leto izida: | 2008 |
Tipologija: | 1.01 - Izvirni znanstveni članek |
Organizacija: | UM FNM - Fakulteta za naravoslovje in matematiko |
UDK: | 512.552 |
COBISS: | 14661721 |
ISSN: | 0236-5294 |
Št. ogledov: | 42 |
Št. prenosov: | 3 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Slovenski jezik |
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Sekundarni naslov: | Nekatere funkcijske identitete na standardnih operatorskih algebrah |
Sekundarni povzetek: | The main purpose of this paper is to prove the following result. Let ▫$H$▫ be a complex Hilbert space, let ▫$\mathcal{B}(H)$▫ be the algebra of all bounded linear operators on ▫$H$▫, and let ▫$\mathcal{A}(H) \subset{B}(H)$▫ be a standard operator algebra which is closed under the adjoint operation. Suppose that ▫$T: \mathcal{A}(H) \to \mathcal{B}(H)$▫ is a linear mapping satisfying ▫$T(AA^\ast A) = T(A)A^\ast A - AT(A^\ast)A + AA^\ast T(A)$▫ for all ▫$A \in \mathcal{A}(H)$▫. Then ▫$T$▫ is of the form ▫$T(A) = AB + BA$▫ for all ▫$A \in \mathcal{A}(H)$▫, where ▫$B$▫ is a fixed operator from ▫$\mathcal{B}(H)▫$. A result concerning functional equations related to bicircular projections is proved. |
Sekundarne ključne besede: | matematika;algebra;kolobar;prakolobar;polprakolobar;Banachov prostor;Hilbertov prostor;standardna operatorska algebra;odvajanje;jordansko odvajanje;bicirkularni projektor; |
URN: | URN:SI:UM: |
Vrsta dela (COBISS): | Delo ni kategorizirano |
Strani: | str. 299-306 |
Letnik: | ǂVol. ǂ118 |
Zvezek: | ǂno. ǂ4 |
Čas izdaje: | 2008 |
ID: | 1473554 |