Perfect closures of rings and schemes
Perfect closures of rings and schemes
PERFECT CLOSURES OF RINGS AND SCHEMES 313and the desired result would follow if any one of these were less than or equal to Per(X).Actually one can show, for » = 3, that 3 Per(X) à Per(X0 + Per(X2) + Per(X8), but the method offers no hope of generalization.Even the analogue …