2003/11/28 by Shouchuan Zhang
Mathematics · #math.QA #math.RA #msc:16w30
published as Chinese Math. Ann. 22A(2001), 767--772 · 13page
arxiv created 2003/11/28 · arxiv updated 2009/12/01
We obtain that the global dimensions of R and the crossed product R # σH are the same; meantime, their weak dimensions are also the same, when H is finite-dimensional semisimple and cosemisimple Hopf algebra.