G. BONANZINGA e G. RESTUCCIA
Sistemi di derivazioni e gruppi formali
Received: 29 October 1993
AMS Classification: 16L01
Abstract Let F be an n-dimensional formal group over a field k of characteristic p>0. If A is a local k-algebra and F is the n-dimensional additive formal group Fa over k or the n-dimensional multiplicative formal group Fm over k, then any action of the Lie algebra of the F-invariant derivations of A results to be F-integrable, when some convenient conditions involving A and its derivations are satisfied.