Argac, NBell, HEFong, YMaxson, CMeldrum, JPilz, GVanderWalt, AVanWyk, L2019-10-272019-10-2720010-7923-6706-5https://hdl.handle.net/11454/3589214th International Conference on Near-Rings and Near-Fields -- JUL 09-16, 1997 -- STELLENBOSCH, SOUTH AFRICALet N denote a 3-prime near-ring. We prove that if 2N not equal {0} and d(1) and d(2) are nonzero derivations on N. then d(1) d(2) cannot act as a derivation on a nonzero additively-closed semigroup ideal. We then establish some results involving conditions of form d(x)f(x) = 0, where d is a derivation on N and f is an endomorphism of N.eninfo:eu-repo/semantics/closedAccessConference Object4246WOS:000168586200005N/A