Monatshefte für Mathematik

, Volume 173, Issue 3, pp 441–453 | Cite as

The symbolical and cancellation-free formulae for Schur elements

Article

Abstract

In this paper we give the symbolical formula and cancellation-free formula for the Schur elements associated to the simple modules of the degenerate cyclotomic Hecke algebras. As some applications, we show that the Schur elements are symmetric polynomials with rational integer coefficients and give a different proof of Ariki–Mathas–Rui’s criterion on the semisimplicity of the degenerate cyclotomic Hecke algebras.

Keywords

(Degenerate) cyclotomic Hecke algebras Complex reflection groups Schur elements \(L\)-symbols 

Mathematics Subject Classification (2010)

Primary 16G99 Secondary 20C20 20G05 

Notes

Acknowledgments

This work was partially carried out while the author was visiting the Academy of Mathematics and Systems Science, CAS in Beijing. We are most deeply indebted to Nanhua Xi and Yang Han for their invaluable help. We are grateful to Ming Fang for useful conversations.

References

  1. 1.
    Ariki, S., Mathas, A., Rui, H.: Cyclotomic Nazarov–Wenzl algebras. Nagoya Math. J. 182, 47–134 (2006)MATHMathSciNetGoogle Scholar
  2. 2.
    Broué, M., Malle, G., Michel, J.: Towards spetses I. Transform. Groups 4, 157–218 (1999)CrossRefMATHMathSciNetGoogle Scholar
  3. 3.
    Brundan, J., Kleshchev, A.: Schur–Weyl duality for higher levels. Sel. Math. (New Ser.) 14, 1–57 (2008)CrossRefMATHMathSciNetGoogle Scholar
  4. 4.
    Brundan, J., Kleshchev, A.: Blocks of cyclotomic Hecke algebras and Khovanov–Lauda algebras. Invent. Math. 178, 451–484 (2009)CrossRefMATHMathSciNetGoogle Scholar
  5. 5.
    Brundan, J., Kleshchev, A.: The degenerate analogue of Ariki’s categorification theorem. Math. Z. 266, 877–919 (2010)CrossRefMATHMathSciNetGoogle Scholar
  6. 6.
    Chlouveraki, M.: Blocks and families for cyclotomic Hecke algebras. Lecture Notes in Mathematics 1981. Springer, Heidelberg (2009)Google Scholar
  7. 7.
    Chlouveraki, M., Jacon, N.: Schur elements for the Ariki-Koike algebras and applications. J. Algebr. Comb. 35, 291–311 (2012)CrossRefMATHMathSciNetGoogle Scholar
  8. 8.
    Cohen, A.M.: Finite complex reflection groups. Ann. Sci. Éc. Norma. Sup. 9, 379–436 (1979)Google Scholar
  9. 9.
    Curtis, C.W., Reiner, I.: Methods of Representaiton Theory, vol. I. Wiley, New York (1987)Google Scholar
  10. 10.
    Geck, M., Iancu, L., Malle, G.: Weights of Markov traces and generic degrees. Indag. Math. 11, 379–397 (2000)CrossRefMATHMathSciNetGoogle Scholar
  11. 11.
    Geck, M., Pfeiffer, G.: Characters of finite Coxeter groups and Iwahori-Hecke algebras. London Mathical Society Monogrphs, New series, vol. 21. Oxford University Press, New York (2000)Google Scholar
  12. 12.
    Hu, J., Mathas, A.: Graded Cellular bases for the cyclotomic Khovanov-Lauda-Rouquier algebras of type \(A\). Adv. Math. 225, 598–642 (2010)CrossRefMATHMathSciNetGoogle Scholar
  13. 13.
    Kleshchev, A.: Linear and Projective Representations of Symmetric Groups. Cambridge Tracts in Mathematics, vol. 163. Cambridge University Press, Cambridge (2005)Google Scholar
  14. 14.
    Macdonald, I.G.: Symmetric functions and Hall polynomials, 2nd edn. Clarendon Press, Oxford (1995)MATHGoogle Scholar
  15. 15.
    Malle, G.: Unipotente Grade imprimitiver komplexer Spiegelungsgruppen. J. Algebra 177, 768–826 (1995)CrossRefMATHMathSciNetGoogle Scholar
  16. 16.
    Mathas, A.: Matrix units and generic degrees for the Ariki-Koike algebras. J. Algebra 281, 695–730 (2004)CrossRefMATHMathSciNetGoogle Scholar
  17. 17.
    Orellana, R.C.: Weights of Markov traces on Hecke algebras. J. Reine Angew. Math. 508, 157–178 (1999)CrossRefMATHMathSciNetGoogle Scholar
  18. 18.
    Shephard, G.C., Toda, J.A.: Finite unitary reflection groups. Canad. J. Math. 6, 273–304 (1954)Google Scholar
  19. 19.
    Zhao, D.K.: Matrix units and Schur elements for the degenerate cyclotomic Hecke algebras, arXiv: math1110.1735 (2011)Google Scholar

Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  1. 1.School of Applied MathematicsBeijing Normal University at ZhuhaiZhuhaiChina

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