On centrality of even orthogonal $\mathrm K_2$

arxiv: 1606.00272 · v2 · pith:XB5B3U7Knew · submitted 2016-06-01 · 🧮 math.KT

On centrality of even orthogonal mathrm K₂

Andrei Lavrenov , Sergey Sinchuk This is my paper

classification 🧮 math.KT

keywords centralitymathrmevengeq3giveorthogonalproofrank

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We give a short uniform proof of centrality of $\mathrm K_2(\Phi,\,R)$ for all simply-laced root systems $\Phi$ of rank $\geq3$.

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