The center of a ring Ris the set Z(R) = {x ER| ax = xa for all a € R}. Prove that Z(R) is a subring of R. Do you think t
Posted: Wed May 11, 2022 9:55 pm
The center of a ring Ris the set Z(R) = {x ER| ax = xa for all a € R}. Prove that Z(R) is a subring of R. Do you think that Z(R) is an ideal of R? Explain why or why not.