The term center or centre is used in various contexts in abstract algebra to denote the set of all those elements that commute with all other elements.
The center of a ring R is defined to be {c ∈ R: cr = rc for every r ∈ R}., Exercise 22.22
The term center or centre is used in various contexts in abstract algebra to denote the set of all those elements that commute with all other elements.
The center of a ring R is defined to be {c ∈ R: cr = rc for every r ∈ R}., Exercise 22.22