Autor:	Milićević, Elizabeth, Schwer, Petra, Thomas, Anne
Rok vydání:	2020
Předmět:	Mathematics - Algebraic Geometry Mathematics - Combinatorics Mathematics - Group Theory Mathematics - Representation Theory 20G25 11G25 (Primary) 20F55 20E42 14L05 (Secondary)
Druh dokumentu:	Working Paper
Popis:	We characterize the nonemptiness and dimension problems for an affine Deligne-Lusztig variety $X_x(b)$ in the affine flag variety in terms of galleries that are positively folded with respect to a chimney. If the parabolic subgroup associated to the Newton point of b has rank 1, we then prove nonemptiness for a certain class of Iwahori-Weyl group elements x by explicitly constructing such galleries. Comment: 54 pages, 14 figures best viewed in color; final version to appear in Ann. Inst. Fourier
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2006.16288 Zobrazit plný text záznamu View this record from Arxiv