Idempotents of Hecke algebras of type A
Abstract
We use a skeintheoretic version of the Hecke algebras of type A to present threedimensional diagrammatic views of Gyoja's idempotent elements, based closely on the corresponding Young diagram. In this context we give straightforward calculations for the eigenvalues of two natural central elements in the Hecke algebras, namely the full curl and the sum of the Murphy operators. We discuss their calculation also in terms of the framing factor associated to the appropriate irreducible representation of the quantum group SU(N,q).
 Publication:

eprint arXiv:qalg/9702017
 Pub Date:
 February 1997
 DOI:
 10.48550/arXiv.qalg/9702017
 arXiv:
 arXiv:qalg/9702017
 Bibcode:
 1997q.alg.....2017A
 Keywords:

 Mathematics  Quantum Algebra;
 Mathematics  Geometric Topology
 EPrint:
 27 pages LaTeX2e, 21 figures. The statements of theorem 4.1 and corollary 4.2 have been corrected, and a proof has been added. We thank Sachin Valera for pointing out the mistake in the original statement of theorem 4.1 . At the same time some of the references have been updated