Cne diamant: Tableaux de Young quasi standards (Omn.Pres.Franc.) (French Edition),Used

Cne diamant: Tableaux de Young quasi standards (Omn.Pres.Franc.) (French Edition),Used

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SKU: DADAX3838170385
Brand: Omniscriptum
Condition: New
Regular price$88.41
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Depuis le 19me siecle, on utilise les tableaux de Young semi standards pour indexer les bases des modules simples sur l'algbre de Lie gl(m) ou sl(m). L'ensemble de tous ces tableaux forme une base pour l'algbre de forme de l'algbre de Lie considre. Dans le cas d'une algbre de Lie g nilpotente, et pour ses modules localement nilpotents, il semble trs difficle de dfinir une notion similaire celle d'algbre de forme. Ce problme a cependant une solution si g est le facteur nilpotent de la dcomposition d'Iwasawa d'une algbre de Lie semi simple. Dans ce cas, l'algbre de forme reduite apparait comme un quotient de l'algbre de forme de l'algbre semi simple par l'ideal engendre par les vecteurs v_w 1 ou v_w est un vecteur de plus haut poids pour une reprsentation fondamentale de l'algbre semi simple. Il reste dcrire ce quotient et sa structure de g module. En gnral c'est un module indecomposable, union de toutes les restrictions g des modules simples V(lambda) de l'algbre semisimple. Cette union forme une stratication, et on veut dcrire des bases explicites de cette algebre de forme, qui respecte la stratication.

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