R. Martinez-Villa, J. Mondragon
      Skew group algebras, invariants and Weyl algebras
      International Journal of Algebra, Vol. 9, 2015, no. 9, 413-455
      http://dx.doi.org/10.12988/ija.2015.5847

Copyright © 2015 R. Martinez-Villa and J. Mondragon. This article is distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.