Hi let N,L,Q are lie algebras. N is abelian and an exact sequence. I want to show that N is Q-MOdule . but i can't. if is it true? but i don't show 3 conditions of modules. 3 conditions are: if are false, can you tell me q.n=?? thanks.
Last edited by vernal; April 6th 2012 at 01:16 AM.
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