New math helps researchers simplify complex networks without losing their behavior

Researchers have a new mathematical tool to simplify complex networks. This tool helps them ensure that when they make a network smaller, it still behaves like the original.

Scientists often simplify complex systems, like social networks or power grids, to study them. But these simplifications can accidentally remove important behaviors. This new math tool helps them check if their simplified models still accurately reflect how things move or spread through the original network.