Du Jie.SIGN TYPES AND KAZHDAN-LUSZTIG CELLS[J].Chinese Annals of Mathematics B,1991,12(1):33~39
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Authors：
Du Jie;
Abstract：
This paper studies the relations between sign types and left cells in an affine Weyl group. It is proved that any left cell is a union of finitely many connected sets in the sense of [5]. Also, a geometric explanation of the finiteness of cells in an affine Weyl group is given.
