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: "turing degree spectra of minimal subshifts"
  Abstract: Subshifts are shift invariant closed subsets of $\Sigma^{\mathbb{Z}^d}$ , minimal subshifts are subshifts in which all points contain the same patterns. It has been proved by Jeandel and Vanier that the Turing degree spectra of non-periodic minimal subshifts always contain the cone of Turing degrees above any of its degree. It was however not known whether each minimal subshift's spectrum was formed of exactly one cone or not. We construct inductively a minimal subshift whose spectrum consists of an uncountable number of cones with disjoint base.

Connected through hyperedge HE-1 (induced by source paper "the relationship between word complexity and computational complexity in subshifts"):
  with members:
    - "turing degrees of multidimensional sfts"

Connected through hyperedge HE-2 (induced by source paper "the expressiveness of quasiperiodic and minimal shifts of finite type"):
  with members:
    - "on the expressive power of quasiperiodic sft"
    - "quasiperiodicity and non computability in tilings"
    - "turing degrees of multidimensional sfts"
    - "fixed point tile sets and their applications"

Connected through hyperedge HE-3 (induced by source paper "on the expressive power of quasiperiodic sft"):
  with members:
    - "quasiperiodicity and non computability in tilings"
    - "turing degrees of multidimensional sfts"
    - "fixed point tile sets and their applications"

Connected through hyperedge HE-4 (induced by source paper "quasiperiodicity and non computability in tilings"):
  with members:
    - "a note on turing degree spectra of minimal subshifts"
    - "turing degrees of multidimensional sfts"
    - "fixed point tile sets and their applications"

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.FL(Formal Languages and Automata Theory)