[Une conjecture de Kottwitz et Rapoport]
On démontre une conjecture de Kottwitz et Rapoport sur une réciproque à l'inégalité de Mazur pour tout groupe (connexe) réductif, déployé ou quasi-déployé non-ramifié. Nos résultats sont liés à la non-vacuité de certaines variétés de Deligne-Lusztig affines.
We prove a conjecture of Kottwitz and Rapoport which implies a converse to Mazur's Inequality for all (connected) split and quasi-split unramified reductive groups. Our results are related to the non-emptiness of certain affine Deligne-Lusztig varieties.
Keywords: Newton polygon, isocrystal, affine Deligne-Lusztig variety
Mot clés : polygone de Newton, isocristal, variétés de Deligne-Lusztig affines
@article{ASENS_2010_4_43_6_1017_0, author = {Gashi, Q\"endrim R.}, title = {On a conjecture of {Kottwitz} and {Rapoport}}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {1017--1038}, publisher = {Soci\'et\'e math\'ematique de France}, volume = {Ser. 4, 43}, number = {6}, year = {2010}, doi = {10.24033/asens.2138}, mrnumber = {2778454}, zbl = {1225.14037}, language = {en}, url = {http://www.numdam.org/articles/10.24033/asens.2138/} }
TY - JOUR AU - Gashi, Qëndrim R. TI - On a conjecture of Kottwitz and Rapoport JO - Annales scientifiques de l'École Normale Supérieure PY - 2010 SP - 1017 EP - 1038 VL - 43 IS - 6 PB - Société mathématique de France UR - http://www.numdam.org/articles/10.24033/asens.2138/ DO - 10.24033/asens.2138 LA - en ID - ASENS_2010_4_43_6_1017_0 ER -
%0 Journal Article %A Gashi, Qëndrim R. %T On a conjecture of Kottwitz and Rapoport %J Annales scientifiques de l'École Normale Supérieure %D 2010 %P 1017-1038 %V 43 %N 6 %I Société mathématique de France %U http://www.numdam.org/articles/10.24033/asens.2138/ %R 10.24033/asens.2138 %G en %F ASENS_2010_4_43_6_1017_0
Gashi, Qëndrim R. On a conjecture of Kottwitz and Rapoport. Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 43 (2010) no. 6, pp. 1017-1038. doi : 10.24033/asens.2138. http://www.numdam.org/articles/10.24033/asens.2138/
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