Almost all books that I have found deal with derivation on several types of rings (or algebras) (for instance, commutative, noncommutative, domains, non-domains etc).
However, each paper about locally nilpotent derivations (that I know) suppose the ring is a domain.
Question: what happens with rings containing zero divisors and the study of locally nilpotent derivations? Does exist any phenomenon on them?
I appreciate any reference.