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: "agent time epistemics and coordination"
  Abstract: A minor change to the standard epistemic logical language, replacing $K_{i}$ with $K_{\node{i,t}}$ where $t$ is a time instance, gives rise to a generalized and more expressive form of knowledge and common knowledge operators. We investigate the communication structures that are necessary for such generalized epistemic states to arise, and the inter-agent coordination tasks that require such knowledge. Previous work has established a relation between linear event ordering and nested knowledge, and between simultaneous event occurrences and common knowledge. In the new, extended, formalism, epistemic necessity is decoupled from temporal necessity. Nested knowledge and event ordering are shown to be related even when the nesting order does not match the temporal order of occurrence. The generalized form of common knowledge does {\em not} correspond to simultaneity. Rather, it corresponds to a notion of tight coordination, of which simultaneity is an instance.

Connected through hyperedge HE-1 (induced by source paper "on using time without clocks via zigzag causality"):
  with members:
    - "relating knowledge and coordinated action the knowledge of preconditions principle"
    - "the shape of reactive coordination tasks"
    - "timely common knowledge"

Connected through hyperedge HE-2 (induced by source paper "relating knowledge and coordinated action the knowledge of preconditions principle"):
  with members:
    - "the shape of reactive coordination tasks"
    - "an optimal self stabilizing firing squad"
    - "knowledge and common knowledge in a distributed environment"
    - "common knowledge revisited"

Connected through hyperedge HE-3 (induced by source paper "the shape of reactive coordination tasks"):
  with members:
    - "causality knowledge and coordination in distributed systems"
    - "knowledge and common knowledge in a distributed environment"
    - "common knowledge revisited"

Connected through hyperedge HE-4 (induced by source paper "timely common knowledge"):
  with members:
    - "timely coordination in a multi agent system"
    - "knowledge and common knowledge in a distributed environment"

Connected through hyperedge HE-5 (induced by source paper "timely coordination in a multi agent system"):
  with members:
    - "causality knowledge and coordination in distributed systems"
    - "knowledge and common knowledge in a distributed environment"

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.MA(Multiagent Systems)