on the fundamental lemma - MathOverflow most recent 30 from http://mathoverflow.net2013-05-22T17:35:21Zhttp://mathoverflow.net/feeds/question/118892http://www.creativecommons.org/licenses/by-nc/2.5/rdfhttp://mathoverflow.net/questions/118892/on-the-fundamental-lemmaon the fundamental lemmaprochet2013-01-14T16:06:52Z2013-01-14T16:06:52Z
<p>I consider the fundamental lemma for the spherical Hecke algebra.</p>
<p>Let $G$ a connected reductive quasisplit group on $F$, a local field of equal characteristic $p$.
and $H$ an endoscopic group.</p>
<p>Can we reduce the fundamental lemma for (G,H) to the fundamental lemma for $(H,G)$ with $G_{der}=G_{sc}$ or even better to (H, G) where both G and H have a simply connected derived group?</p>