Let be a semiprime ring,
a non zero ideal of
.
A mapping (not necessarily additive) is said to be a multiplicative (generalized)-derivation of
if
holds for all
, where
is any mapping on
. A map
(not necessarily additive) is called a multiplicative left multiplier if
The main objective of this article is to study the following situations:
,
,
,
,
,
,
for all in some appropriate subsets of
.