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: "borel ranks and wadge degrees of context free omega languages"
  Abstract: We show that, from a topological point of view, considering the Borel and the Wadge hierarchies, 1-counter B\"uchi automata have the same accepting power than Turing machines equipped with a B\"uchi acceptance condition. In particular, for every non null recursive ordinal alpha, there exist some Sigma^0_alpha-complete and some Pi^0_alpha-complete omega context free languages accepted by 1-counter B\"uchi automata, and the supremum of the set of Borel ranks of context free omega languages is the ordinal gamma^1_2 which is strictly greater than the first non recursive ordinal. This very surprising result gives answers to questions of H. Lescow and W. Thomas [Logical Specifications of Infinite Computations, In:"A Decade of Concurrency", LNCS 803, Springer, 1994, p. 583-621].

Connected through hyperedge HE-1 (induced by source paper "infinite games specified by 2 tape automata"):
  with members:
    - "the determinacy of context free games"
    - "highly undecidable problems for infinite computations"
    - "the complexity of infinite computations in models of set theory"
    - "wadge degrees of infinitary rational relations"

Connected through hyperedge HE-2 (induced by source paper "three applications to rational relations of the high undecidability of the infinite post correspondence problem in a regular omega language"):
  with members:
    - "highly undecidable problems for infinite computations"
    - "decision problems for turing machines"
    - "on the continuity set of an omega rational function"
    - "undecidable problems about timed automata"

Connected through hyperedge HE-3 (induced by source paper "the determinacy of context free games"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "highly undecidable problems for infinite computations"
    - "the complexity of infinite computations in models of set theory"

Connected through hyperedge HE-4 (induced by source paper "some problems in automata theory which depend on the models of set theory"):
  with members:
    - "highly undecidable problems for infinite computations"
    - "the complexity of infinite computations in models of set theory"

Connected through hyperedge HE-5 (induced by source paper "highly undecidable problems for infinite computations"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "on recognizable languages of infinite pictures"
    - "on the topological complexity of infinitary rational relations"
    - "highly undecidable problems about recognizability by tiling systems"
    - "undecidable problems about timed automata"

Connected through hyperedge HE-6 (induced by source paper "the complexity of infinite computations in models of set theory"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "highly undecidable problems for infinite computations"
    - "on recognizable languages of infinite pictures"
    - "topological complexity of context free omega languages a survey"
    - "highly undecidable problems about recognizability by tiling systems"

Connected through hyperedge HE-7 (induced by source paper "topological complexity of context free omega languages a survey"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "on omega context free languages which are borel sets of infinite rank"
    - "an effective extension of the wagner hierarchy to blind counter automata"
    - "on winning conditions of high borel complexity in pushdown games"
    - "wadge degrees of infinitary rational relations"
    - "the complexity of games on higher order pushdown automata"

Connected through hyperedge HE-8 (induced by source paper "wadge degrees of infinitary rational relations"):
  with members:
    - "on infinitary rational relations and borel sets"
    - "an effective extension of the wagner hierarchy to blind counter automata"
    - "on the topological complexity of infinitary rational relations"

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.LO(Logic in Computer Science)