Vol. 226, No. 2, 2006
Download This Article
with up-to-date links in citations
Download this article. For Screen
For Printing
Recent Issues
Vol. 238: No. 1  No. 2
Vol. 237: No. 1  No. 2
Vol. 236: No. 1  No. 2
Vol. 235: No. 1  No. 2
Vol. 234: No. 1  No. 2
Vol. 233: No. 1  No. 2
Online Archive
Volume:
Issue:
 
 
Volumes 1–176are stored at Project Euclid
The Journal
Cover Page
Editorial Board
How To
Submissions Guidelines
Submissions Page
Subscriptions
Elect. License Agreement
Test your IP address
Contacts
To Appear

Lower boundary hyperplanes of the canonical left cells in the affine Weyl group Wa(Ã n−1)

Jian-yi Shi

Abstract

Let Γ be any canonical left cell of the afine Weyl group Wa of type Ãn−1 for n > 1. We describe the lower boundary hyperplanes for Γ, answering two questions of Humphreys.
Keywords

affine Weyl groups, canonical left cells, hyperplanes, alcoves, sign types

Mathematical Subject Classification

Primary: 20F55
Authors
Jian-yi Shi
Department of Mathematics
East China Normal University
Shanghai, 200062
China 		Center for Combinatorics
Nankai University
Tianjin, 300071
China