Weakly Reversible Reaction Network

A weakly reversible reaction network is a reaction network in which every reaction has a directed graph path from back to (Boros and Hofbauer 2020). Equivalently, every connected component of its underlying undirected graph forms a strongly connected digraph. The condition permits return paths with several reactions. For example, the cycle is weakly reversible although it contains none of the three reverse reactions. The condition alone does not impose identities between incoming and outgoing fluxes at the complexes.