A necessary and sufficient condition for triangulability of derivations of k[X,Y,Z]

[摘要] We give a triangulability criterion for derivations of k[X, Y, Z]. As an application, we give an example of two locally nilpotent derivations D and T of k[X, Y, Z], where T is triangulable but D is not, with equality of the ideals of fixed points: (DX, DY, DZ) = (TX, TY, TZ).

[发布日期] 1996-12-23