Talk:Schur's lemma

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Is the Schur lemma mentioned on Simple module the same as the one here? MarSch 16:45, 7 Apr 2005 (UTC)

The simple answer is 'yes'. Charles Matthews 17:39, 7 Apr 2005 (UTC)

In differential geometry, Schur's Lemma usually refers to the result that if the sectional curvature of a Riemannian manifold does not depend on the choice of 2-plane in any tangent space, then it also does not depend on the point in the manifold, i.e., the manifold has constant curvature. Shouldn't this be added here? 128.138.64.92 21:13, 10 April 2007 (UTC)