On the depth of local rings of invariants of cyclic groups

John Fogarty
1981 Proceedings of the American Mathematical Society  
For wild actions of a cyclic group G on a local ring R, with R°n oetherian, it is shown that depth R -depth RG can be arbitrarily large, even if R is regular and contains Z.
doi:10.1090/s0002-9939-1981-0627666-3 fatcat:a62nxrbxybe2vasnfj2xyxkepu