9 citations · 9 across the 9 of their papers we have counts for
Showing 2023Show all
2 papers · 1 filter
math.AC2023
When are permutation invariants Cohen-Macaulay?
H. E. A. Campbell, David L. Wehlau
Over a field of characteristic 0, every ring of invariants of a finite group is Cohen-Macaulay. This is not true for fields of positive characteristic. We consider permutation repr…
math.RT2023
Semi-Invariant Rings: UFD and Codimension One Orbits
Charles Paquette, Deepanshu Prasad, David Wehlau
Let be a finite dimensional associative -algebra over an algebraically closed field of characteristic zero. To , we can associate its basic form tha…