English

Markov traces on degenerate cyclotomic Hecke algebras

Representation Theory 2025-11-20 v3 Rings and Algebras

Abstract

Let Hn(u)H_n(\boldsymbol{u}) be the degenerate cyclotomic Hecke algebra with parameter u=(u1,,um)\boldsymbol{u}=(u_1, \ldots, u_m) over C(u)\mathbb{C}(\boldsymbol{u}). We define and construct the (non-)normalized Markov traces on the sequence {Hn(u)}n=1\{H_n(\boldsymbol{u})\}_{n=1}^{\infty}. This allows us to provide a canonical symmetrizing form on Hn(u)H_n(\boldsymbol{u}) and show that the Brudan--Kleshchev trace on Hn(u)H_n(\boldsymbol{u}) is a specialization of the non-normalized Markov traces.

Keywords

Cite

@article{arxiv.2409.09372,
  title  = {Markov traces on degenerate cyclotomic Hecke algebras},
  author = {Deke Zhao},
  journal= {arXiv preprint arXiv:2409.09372},
  year   = {2025}
}

Comments

Some typo fixed, minor changes,comments, suggestions and corrections are welcome