I have a problem of expressions with proper notations. If you can help me to give a formal and exact expression, it will be helpful.
The specific description is
Given a set of non-negative variable $c_{m,k}\in C$, there exists $\max\{c_{m,k}\}$ and $\min\{c_{m,k}\}$. I would like to express most elements in $C$ are close to $\max\{c_{m,k}\}$ and the rest are close to $\min\{c_{m,k}\}$.
What is the best/formal way to express that?