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: "characterization and computation of equilibria for indivisible goods"
  Abstract: We consider the problem of allocating indivisible goods using the leading notion of fairness in economics: the competitive equilibrium from equal incomes. Focusing on two major classes of valuations, namely perfect substitutes and perfect complements, we establish the computational properties of algorithms operating in this framework. For the class of valuations with perfect complements, our algorithm yields a surprisingly succinct characterization of instances that admit a competitive equilibrium from equal incomes.

Connected through hyperedge HE-1 (induced by source paper "algorithms for competitive division of chores"):
  with members:
    - "fair division with minimal sharing"
    - "strategyproof and approximately maxmin fair share allocation of chores"
    - "universal growth in production economies"
    - "fair allocation of combinations of indivisible goods and chores"
    - "on the proximity of markets with integral equilibria"
    - "competitive division of a mixed manna"
    - "approximation algorithms for computing maximin share allocations"
    - "almost envy freeness with general valuations"

Connected through hyperedge HE-2 (induced by source paper "competitive equilibrium for almost all incomes existence and fairness"):
  with members:
    - "approximating nash social welfare under submodular valuations through un matchings"
    - "competitive equilibrium with generic budgets beyond additive"
    - "monotonicity and competitive equilibrium in cake cutting"
    - "negotiation strategies for agents with ordinal preferences"
    - "on the proximity of markets with integral equilibria"
    - "the complexity of cake cutting with unequal shares"
    - "fair allocation of indivisible goods to asymmetric agents"
    - "competitive division of a mixed manna"

Connected through hyperedge HE-3 (induced by source paper "competitive equilibria with indivisible goods and generic budgets"):
  with members:
    - "fair allocation of indivisible goods to asymmetric agents"
    - "truthful allocation mechanisms without payments characterization and implications on fairness"
    - "almost envy freeness with general valuations"
    - "approximating the nash social welfare with budget additive valuations"
    - "communication complexity of discrete fair division"
    - "competitive equilibrium for almost all incomes"
    - "convex program duality fisher markets and nash social welfare"
    - "nash social welfare for indivisible items under separable piecewise linear concave utilities"

Connected through hyperedge HE-4 (induced by source paper "the query complexity of cake cutting"):
  with members:
    - "approximation algorithms for computing maximin share allocations"
    - "almost envy freeness with general valuations"
    - "consensus halving is ppa complete"
    - "resource monotonicity and population monotonicity in connected cake cutting"
    - "fair division of a graph"
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "to give or not to give fair division for single minded valuations"
    - "the complexity of fairness through equilibrium"

Connected through hyperedge HE-5 (induced by source paper "competitive equilibrium for almost all incomes"):
  with members:
    - "competitive division of a mixed manna"
    - "to give or not to give fair division for single minded valuations"
    - "competitive equilibrium with equal incomes for allocation of indivisible objects"
    - "the complexity of fairness through equilibrium"
    - "a social welfare optimal sequential allocation procedure"

Connected through hyperedge HE-6 (induced by source paper "to give or not to give fair division for single minded valuations"):
  with members:
    - "fair and square cake cutting in two dimensions"
    - "envy free cake cutting in two dimensions"
    - "a discrete and bounded envy free cake cutting protocol for four agents"
    - "clearing markets via bundles"
    - "a unifying hierarchy of valuations with complements and substitutes"
    - "the complexity of fairness through equilibrium"

Connected through hyperedge HE-7 (induced by source paper "nash social welfare for indivisible items under separable piecewise linear concave utilities"):
  with members:
    - "settling the complexity of arrow debreu equilibria in markets with additively separable utilities"
    - "spending is not easier than trading on the computational equivalence of fisher and arrow debreu equilibria"

Connected through hyperedge HE-8 (induced by source paper "competitive equilibrium with equal incomes for allocation of indivisible objects"):
  with members:
    - "the complexity of fairness through equilibrium"

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.GT(Computer Science and Game Theory)