Skip to main content
3 events
when toggle format what by license comment
Mar 22, 2010 at 15:21 history edited damiano CC BY-SA 2.5
added 861 characters in body
Mar 22, 2010 at 5:17 comment added Torsten Ekedahl The characteristic certainly plays a role in the answer. For all characteristics but two the invariant ring is Cohen-Macaulay but in characteristic two it isn't. It is of course true that you might find a (more or less) characteristic free presentation of the invariant ring where this fact is not apparent.
Mar 21, 2010 at 9:45 history answered damiano CC BY-SA 2.5