identity relation
5.Let R be a semiprime ring with extended centroid C and maximal right ring of quotients U,a,b E U andδa generalized derivation of R. This article studies annihi- lators of nilpotent and power central values of generalized derivations,that is the identity (aδ(x))~nb=0(∈C),and completely charactersδand the relation betweenδand a,b. The results simultaneously generalize some results of Herstein and Bre?ar.
6.Its just his particular identity between "upper" and "lower" classes that makes his fiction contain the close relation with "internal audience" and its own originality that exceeds the folk artistic forms; furthermore, it always keeps the realistic originality that makes his works increasingly utter cacophony in the establishing course of contemporary literature criterion.
7.The two just like the vehicle two turns, second the wings bird is inseparable, has the close relation, has the intrinsic self-identity.
9.At present, the social relation between government and schools is gradually evolving to the relation among investor, administrator and school organizer, government administration system is continually transferring itself to new one ,and the identity of administrative body and private party in administrative process is being redefined.
