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Parabolic Lie algebra : ウィキペディア英語版 | Parabolic Lie algebra In algebra, a parabolic Lie algebra is a subalgebra of a semisimple Lie algebra satisfying one of the following two conditions: * contains a maximal solvable subalgebra (a Borel subalgebra) of ; * the Killing perp of in is the nilradical of . These conditions are equivalent over an algebraically closed field of characteristic zero, such as the complex numbers. If the field is not algebraically closed, then the first condition is replaced by the assumption that * contains a Borel subalgebra of where is the algebraic closure of . ==See also==
* Generalized flag variety
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Parabolic Lie algebra」の詳細全文を読む
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