Let $G$ be a group. Let $Z(G)$ be the center of $G$, the set of elements that commute with every element of $G$.
Then, can we say that there is some elements in $Z(G/Z(G))$ which is not $Z(G)$?
Let $G$ be a group. Let $Z(G)$ be the center of $G$, the set of elements that commute with every element of $G$.
Then, can we say that there is some elements in $Z(G/Z(G))$ which is not $Z(G)$?