Browsing 2014 by MFO Series ID "OWP-2014-16"
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Cocharacter-Closure and the Rational Hilbert-Mumford Theorem
[OWP-2014-16] (Mathematisches Forschungsinstitut Oberwolfach, 2014-12-20)For a field $k$, let $G$ be a reductive $k$-group and $V$ an affine $k$-variety on which $G$ acts. Using the notion of cocharacter-closed $G(k)$-orbits in $V$ , we prove a rational version of the celebrated Hilbert-Mumford ...