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Lie Algebras 14 -- Cartan's criterion for semisimplicity

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Опубликовано:

4 сен 2024

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Комментарии : 9

@ouni2022 4 месяца назад

Thanks! There are some videos missing in the playlist - could you please add them?

@nathansmith2168 3 месяца назад

The definition of nondegeneracy in the theorem statement at 5:10 is incorrect. It should be that if x is nonzero then there exists some y such that K(x,y) is nonzero.

@milenamarquez 4 месяца назад

@21:51 I am sure I am missing something huge, but would somebody tell me why J is a solvable ideal of I perp if it commutes with it? (J can't be a center of I perp, as J isn't contained in I perp in the first place, I and I perp being a direct sum.)