extremal

“It is quite difficult to have a common theorem to incorporate all the extremal cases,” said Kang.

In the context of extremal combinatorics, you can use probability to show that networks with certain properties actually exist, even if you might have a hard time coming up with an example of one yourself.

He studies extremal combinatorics, meaning objects like very large graphs or networks.

As the hole shrank, so did the quantum extremal surface and, with it, the entanglement entropy.