English

Ideals generated by traces or by supertraces in the symplectic reflection algebra $H_{1,\nu}(I_2(2m+1))$

Representation Theory 2019-12-12 v1 High Energy Physics - Theory Mathematical Physics math.MP

Abstract

For each complex number ν\nu, an associative symplectic reflection algebra H:=H1,ν(I2(2m+1))\mathcal H:= H_{1,\nu}(I_2(2m+1)), based on the group generated by root system I2(2m+1)I_2(2m+1), has an mm-dimensional space of traces and an (m+1)(m+1)-dimensional space of supertraces. A (super)trace spsp is said to be degenerate if the corresponding bilinear (super)symmetric form Bsp(x,y)=sp(xy)B_{sp}(x,y)=sp(xy) is degenerate. We find all values of the parameter ν\nu for which either the space of traces contains a degenerate nonzero trace or the space of supertraces contains a degenerate nonzero supertrace and, as a consequence, the algebra H\mathcal H has a two-sided ideal of null-vectors. The analogous results for the algebra H1,ν1,ν2(I2(2m))H_{1,\nu_1, \nu_2}(I_2(2m)) are also presented.

Keywords

Cite

@article{arxiv.1612.00536,
  title  = {Ideals generated by traces or by supertraces in the symplectic reflection algebra $H_{1,\nu}(I_2(2m+1))$},
  author = {S. E. Konstein and I. V. Tyutin},
  journal= {arXiv preprint arXiv:1612.00536},
  year   = {2019}
}

Comments

20 pages, LaTeX 2e