Timeline for What notions are used but not clearly defined in modern mathematics?
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| Feb 27, 2011 at 20:35 | comment | added | Emerton | I believe though that the situation is in better shape now than it once was. The proof of the fundamental lemma should allow Arthur to complete his work on the stable trace formula for classical groups, and lead to a theory of local $A$-packets for classical groups. Since in the tempered case $A$-packets and $L$-packets coincide, and since the general description of $L$-packets reduces to the description of tempered $L$-packets for Levi's, my understanding is that this should also lead to a theory of local $L$-packets for classical groups. | |
| Feb 26, 2011 at 7:46 | history | answered | Jeff Adler | CC BY-SA 2.5 |