Invariants for representations of Weyl groups and two-sided cells

• GYOJA Akihiko

  Graduate School of Mathematics, Nagoya University

• NISHIYAMA Kyo

  Faculty of Integrated Human Studies, Kyoto University

• SHIMURA Hiroyuki

  Faculty of Science, Kyoto University

Bibliographic Information

Other Title

• Invariants for representation of Weyl groups and two-sided cells

Abstract

The notion of two-sided cell, which was originally introduced by A. Joseph and reformulated by D. Kazhdan and G. Lusztig, has played an important role in the representation theory. Results concerning them have been obtained by very deep and sometimes ad hoc arguments. Here we introduce certain polynomial invariants for irreducible representations of Weyl groups. Our invariants are easily calculated, and the calculational results show that they almost determine the two-sided cells. Moreover, the factorization pattern of our polynomial invariants seems to be controlled by the natural parameter set \mathscr{M}(\mathscr{G}) of each two-sided cell.

Journal

• Journal of the Mathematical Society of Japan

  Journal of the Mathematical Society of Japan 51 (1), 1-34, 1999

  The Mathematical Society of Japan

Keywords

• representations of Weyl groups
• two-sided cells

Details

• CRID: 1390282680092783872
• NII Article ID: 10002151340
• NII Book ID: AA0070177X
• DOI: 10.2969/jmsj/05110001
• ISSN: 18811167
• ISSN: 18812333
• ISSN: 00255645
• MRID: 1661012
• NDL BIB ID: 4643240
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4643240
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed