Center of Twisted Graded Hecke Algebras for Homocyclic Groups
  We determine explicitly the center of the twisted graded Hecke algebras associated to homocyclic groups. Our results are a generalization of formulas by M. Douglas and B. Fiol in [J. High Energy Phys. 2005 (2005), no. 9, 053, 22 pages, hep-th/9903031]. 
Wee Liang Gan, Matthew Highfield
math.RA