human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "Input/Output Compatibility of Reactive Systems"):
  Abstract: The notion of I/O compatibility of reactive systems is defined. It models the fact that two systems can be connected and establish a correct dialogue through their input and output events. I/O compatibility covers safeness and liveness properties that can be checked with a polynomial-time decision procedure. The relationship between observational equivalence, I/O compatibility and input properness is also studied with the aim at supporting the proposal of transformations for the synthesis of reactive systems. Finally, a set of Petri net transformations that preserve I/O compatibility are shown as an example of application of the theory presented in this paper.

Includes members:
  Member "Synthesis of Reactive Systems: Application to Asynchronous Circuit Design":
    also connected through other hyperedges:
      (none)

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Mathematics