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Brauer's permutation lemma

147 bytes added, 15:33, 13 April 2010
Facts
==Facts==
* [[Analogue of Brauer's permutation lemma fails over rationals for every non-cyclic finite group]]: If <math>G</math> is a non-cyclic finite group, we can find two permutation representations <math>\varphi_1, \varphi_2</math> of <math>G</math> that are equivalent as linear representations over the rational numbers but not as permutation representations.* [[Symmetric group of degree six or higher is not weak subset-conjugacy-closed in general linear group over rationals]]
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