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: "the connectivity of boolean satisfiability no constants and quantified variants"
  Abstract: For Boolean satisfiability problems, the structure of the solution space is characterized by the solution graph, where the vertices are the solutions, and two solutions are connected iff they differ in exactly one variable. Motivated by research on heuristics and the satisfiability threshold, Gopalan et al. in 2006 studied connectivity properties of the solution graph and related complexity issues for constraint satisfaction problems in Schaefer's framework. They found dichotomies for the diameter of connected components and for the complexity of the st-connectivity question, and conjectured a trichotomy for the connectivity question that we recently were able to prove. #R##N#While Gopalan et al. considered CNF(S)-formulas with constants, we here look at two important variants: CNF(S)-formulas without constants, and partially quantified formulas. For the diameter and the st-connectivity question, we prove dichotomies analogous to those of Gopalan et al. in these settings. While we cannot give a complete classification for the connectivity problem yet, we identify fragments where it is in P, where it is coNP-complete, and where it is PSPACE-complete, in analogy to Gopalan et al.'s trichotomy.

Connected through hyperedge HE-1 (induced by source paper "a reconfigurations analogue of brooks theorem and its consequences"):
  with members:
    - "reconfiguring independent sets in claw free graphs"
    - "vertex cover reconfiguration and beyond"
    - "the complexity of bounded length graph recoloring"
    - "independent set reconfiguration in cographs"
    - "recoloring bounded treewidth graphs"
    - "the connectivity of boolean satisfiability dichotomies for formulas and circuits"
    - "on the parameterized complexity of reconfiguration problems"
    - "the complexity of change"

Connected through hyperedge HE-2 (induced by source paper "the connectivity of boolean satisfiability dichotomies for formulas and circuits"):
  with members:
    - "shortest reconfiguration paths in the solution space of boolean formulas"
    - "a computational trichotomy for connectivity of boolean satisfiability"
    - "on the applicability of post s lattice"
    - "shortest paths between shortest paths and independent sets"
    - "the connectivity of boolean satisfiability computational and structural dichotomies"
    - "on the solution space geometry of random constraint satisfaction problems"
    - "a new look at survey propagation and its generalizations"

Connected through hyperedge HE-3 (induced by source paper "a computational trichotomy for connectivity of boolean satisfiability"):
  with members:
    - "the connectivity of boolean satisfiability dichotomies for formulas and circuits"
    - "shortest paths between shortest paths and independent sets"
    - "the connectivity of boolean satisfiability computational and structural dichotomies"
    - "on the solution space geometry of random constraint satisfaction problems"
    - "a new look at survey propagation and its generalizations"

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.CC(Computational Complexity)