The second cohomology of simple SL_2-modules

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Stewart, David I.
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Abstract
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Let $G$ be the simple algebraic group $SL_2$ defined over an algebraically closed field $K$ of characteristic $p>0$. In this paper, we find the second cohomology of all irreducible representations of $G$
Comment: 10 pages; version to appear in Proc-AMS
Keywords
Mathematics - Representation Theory, 20G05, 20G10
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