human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "positive circuits and maximal number of fixed points in discrete dynamical systems"
  Abstract: We consider the Cartesian product X of n finite intervals of integers and a map F from X to itself. As main result, we establish an upper bound on the number of fixed points for F which only depends on X and on the topology of the positive circuits of the interaction graph associated with F. The proof uses and strongly generalizes a theorem of Richard and Comet which corresponds to a discrete version of the Thomas' conjecture: if the interaction graph associated with F has no positive circuit, then F has at most one fixed point. The obtained upper bound on the number of fixed points also strongly generalizes the one established by Aracena et al for a particular class of Boolean networks.

Connected through hyperedge HE-1 (induced by source paper "relationship between the reprogramming determinants of boolean networks and their interaction graph"):
  with members:
    - "goal oriented reduction of automata networks"
    - "negative circuits and sustained oscillations in asynchronous automata networks"

Connected through hyperedge HE-2 (induced by source paper "fixed points and connections between positive and negative cycles in boolean networks"):
  with members:
    - "fixed points of boolean networks guessing graphs and coding theory"
    - "reduction and fixed points of boolean networks and linear network coding solvability"
    - "fixed point theorems for boolean networks expressed in terms of forbidden subnetworks"
    - "negative circuits and sustained oscillations in asynchronous automata networks"

Connected through hyperedge HE-3 (induced by source paper "on the possible values of the entropy of undirected graphs"):
  with members:
    - "fixed points of boolean networks guessing graphs and coding theory"
    - "reduction and fixed points of boolean networks and linear network coding solvability"
    - "closure solvability for network coding and secret sharing"
    - "graph theoretical constructions for graph entropy and network coding based communications"

Connected through hyperedge HE-4 (induced by source paper "reduction and fixed points of boolean networks and linear network coding solvability"):
  with members:
    - "fixed points of boolean networks guessing graphs and coding theory"
    - "on a duality between recoverable distributed storage and index coding"
    - "fixed point theorems for boolean networks expressed in terms of forbidden subnetworks"
    - "closure solvability for network coding and secret sharing"
    - "graph theoretical constructions for graph entropy and network coding based communications"
    - "on the index coding problem and its relation to network coding and matroid theory"

Connected through hyperedge HE-5 (induced by source paper "fixed points of boolean networks guessing graphs and coding theory"):
  with members:
    - "fixed point theorems for boolean networks expressed in terms of forbidden subnetworks"
    - "closure solvability for network coding and secret sharing"
    - "graph theoretical constructions for graph entropy and network coding based communications"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DM(Discrete Mathematics)