Deligne's topological central extension is universal

Prasad, Gopal (2004) Deligne's topological central extension is universal Advances in Mathematics, 181 (1). pp. 160-164. ISSN 0001-8708

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00018...

Related URL: http://dx.doi.org/10.1016/S0001-8708(03)00048-3

Abstract

We give a purely "local" proof of the fact that the topological central extension of G(k), G an absolutely almost simple algebraic group defined and isotropic over a nonarchimedean local field k, by the finite group μ(k) of roots of unity in k, constructed by Pierre Deligne, is a universal topological central extension of G(k).

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Deposited On:17 Apr 2011 14:58
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