Jezik: | Angleški jezik |
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Leto izida: | 2009 |
Tipologija: | 1.01 - Izvirni znanstveni članek |
Organizacija: | UM FNM - Fakulteta za naravoslovje in matematiko |
UDK: | 512.552 |
COBISS: | 15259481 |
ISSN: | 0024-3795 |
Št. ogledov: | 952 |
Št. prenosov: | 63 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Neznan jezik |
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Sekundarni naslov: | Biodvajanja trikotnih algeber |
Sekundarni povzetek: | Let ▫$\mathcal{A}$▫ be a triangular algebra. A bilinear map ▫$\varphi \colon \mathcal{A \times A \rightarrow A}$▫ is called a biderivation if it is a derivation with respect to both arguments. In this paper we define the concept of an extremal biderivation, and prove that under certain conditions a biderivation of a triangular algebra ▫$\mathcal{A}$▫ is a sum of an extremal and an inner biderivation. The main result is then applied to (block) upper triangular matrix algebras and nest algebras. We also consider the question when a derivation of a triangular algebra is an inner derivation. |
Sekundarne ključne besede: | matematika;trikotna algebra;trikotna matrična algebra;gnezdna algebra;biodvajanje;notranje biodvajanje;odvajanje;notranje odvajanje; |
URN: | URN:SI:UM: |
Vrsta dela (COBISS): | Delo ni kategorizirano |
Strani: | str. 1587-1602 |
Letnik: | ǂVol. ǂ431 |
Zvezek: | ǂiss. ǂ9 |
Čas izdaje: | 2009 |
ID: | 1474438 |