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On left derivations and related mappingsBrešar, Matej ; Vukman, JosoNaj bo ▫$R$▫ kolobar in ▫$X$▫ levi ▫$R$▫-modul. Namen članka je raziskati aditivni preslikavi ▫$D_1:R\to X$▫ in ▫$D_2:R\to X$▫, ki zadoščata pogoju ▫$D_1(ab)=aD_1(b)+bD_1(a),\quad a,b\in R$▫ (levo ... odvajanje) oziroma ▫$D_2(a^2)=2aD(a),\quad a\in R$▫ (jordansko levo odvajnje). Z razmeroma šibkimi predpostavkami je dokazano, da iz obstoja neničelnega jordanskega levega odvajanje iz ▫$R$▫ v ▫$X$▫ sledi, da je ▫$R$▫ komutativen. Ta rezultat je uporabljen pri dokazu dveh nekomutativnih razširitvah klasičnega Singer-Wermerjevega izreka.Source: Proceedings of the American Mathematical Society. - ISSN 0002-9939 (Let. 110, št. 1, 1990, str. 7-16)Type of material - article, component partPublish date - 1990Language - englishCOBISS.SI-ID - 3081476
Author
Brešar, Matej |
Vukman, Joso
Topics
matematika |
funkcionalna analiza |
asociativni kolobarji in algebre |
odvajanja |
jordanska odvajanja |
leva odvajanja |
prakolobarji |
polprakolobarji |
Banachove algebre |
mathematics |
functional analysis |
associative rings and algebras |
derivations |
Jordan derivations |
left derivations |
prime rings |
semiprime rings |
Banach algebras
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source: Proceedings of the American Mathematical Society. - ISSN 0002-9939 (Let. 110, št. 1, 1990, str. 7-16)
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Database name | Field | Year |
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Brešar, Matej | 08721 |
Vukman, Joso | 04310 |
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