Automorphisms and generalized skew derivations which are strong commutativity preserving on polynomials in prime and semiprime rings
Let be a prime ring of characteristic different from 2, its right Martindale quotient ring and its extended centroid. Suppose that , are generalized skew derivations of with the same associated automorphism , and is a non-central polynomial over such that for all . Then there exists such that for all .