CRNs
CRNs is an acronym that can refer to several terms; in science the most common usage is chemical reaction networks, a formal representation of chemical reactions among molecular species. A CRN consists of a set of chemical species, a set of reactions, and stoichiometric coefficients describing how species are consumed and produced. Reactions can be represented by directed edges between complexes, and there are two common graph forms: the complex graph, whose nodes are formal sums of species (complexes) and whose edges are reactions, and the reaction graph, where nodes are individual reactions.
In a deterministic setting, CRNs are modeled with mass-action kinetics; the state is a vector of species
Reaction network theory studies properties such as persistence, multistationarity, and stability. Key results include the deficiency
Applications span modelling metabolic pathways, gene regulatory and signaling networks, and the design of synthetic biochemical