Abstract

We study the subgroup B0(G) of H2(G, [inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="01i" /]) consisting of all elements which have trivial restrictions to every Abelian subgroup of G. The group B0(G) serves as the simplest nontrivial obstruction to stable rationality of algebraic varieties V/G where V is a faithful complex linear representation of the group G. We prove that B0(G) is trivial for finite simple groups of Lie type A.

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Additional Information

ISSN
1080-6377
Print ISSN
0002-9327
Pages
pp. 935-949
Launched on MUSE
2004-07-19
Open Access
No
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