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: "unrestricted state complexity of binary operations on regular languages"
  Abstract: I study the state complexity of binary operations on regular languages over different alphabets. It is well known that if \(L'_m\) and \(L_n\) are languages restricted to be over the same alphabet, with m and n quotients, respectively, the state complexity of any binary boolean operation on \(L'_m\) and \(L_n\) is mn, and that of the product (concatenation) is \((m-1)2^n +2^{n-1}\). In contrast to this, I show that if \(L'_m\) and \(L_n\) are over their own different alphabets, the state complexity of union and symmetric difference is \(mn+m+n+1\), that of intersection is \(mn+1\), that of difference is \(mn+m+1\), and that of the product is \(m2^n+2^{n-1}\).

Connected through hyperedge HE-1 (induced by source paper "primitivity uniform minimality and state complexity of boolean operations"):
  with members:
    - "unrestricted state complexity of binary operations on regular and ideal languages"
    - "most complex regular ideal languages"
    - "a survey on operational state complexity"
    - "symmetric groups and quotient complexity of boolean operations"
    - "quotient complexity of star free languages"
    - "quotient complexity of ideal languages"
    - "quotient complexity of regular languages"

Connected through hyperedge HE-2 (induced by source paper "towards a theory of complexity of regular languages"):
  with members:
    - "most complex non returning regular languages"
    - "unrestricted state complexity of binary operations on regular and ideal languages"
    - "most complex regular ideal languages"
    - "syntactic complexity of regular ideals"
    - "maximally atomic languages"
    - "upper bounds on syntactic complexity of left and two sided ideals"
    - "complexity of atoms combinatorially"
    - "symmetric groups and quotient complexity of boolean operations"

Connected through hyperedge HE-3 (induced by source paper "most complex non returning regular languages"):
  with members:
    - "a new technique for reachability of states in concatenation automata"
    - "on the state complexity of the shuffle of regular languages"
    - "unrestricted state complexity of binary operations on regular and ideal languages"
    - "quotient complexities of atoms in regular ideal languages"
    - "complexity of suffix free regular languages"
    - "syntactic complexity of regular ideals"
    - "complexity of atoms combinatorially"
    - "symmetric groups and quotient complexity of boolean operations"

Connected through hyperedge HE-4 (induced by source paper "a new technique for reachability of states in concatenation automata"):
  with members:
    - "most complex non returning regular languages"
    - "most complex regular ideal languages"
    - "quotient complexity of star free languages"
    - "complexity in prefix free regular languages"
    - "quotient complexity of ideal languages"
    - "quotient complexity of closed languages"

Connected through hyperedge HE-5 (induced by source paper "complexity of left ideal suffix closed and suffix free regular languages"):
  with members:
    - "unrestricted state complexity of binary operations on regular and ideal languages"
    - "quotient complexities of atoms in regular ideal languages"
    - "most complex regular ideal languages"
    - "syntactic complexity of regular ideals"
    - "upper bounds on syntactic complexity of left and two sided ideals"
    - "complexity of atoms combinatorially"
    - "symmetric groups and quotient complexity of boolean operations"
    - "quotient complexities of atoms of regular languages"

Connected through hyperedge HE-6 (induced by source paper "complexity of prefix convex regular languages"):
  with members:
    - "quotient complexities of atoms in regular ideal languages"
    - "most complex regular ideal languages"
    - "syntactic complexity of regular ideals"
    - "maximally atomic languages"
    - "complexity of atoms combinatorially"
    - "symmetric groups and quotient complexity of boolean operations"
    - "quotient complexities of atoms of regular languages"
    - "theory of atomata"

Connected through hyperedge HE-7 (induced by source paper "unrestricted state complexity of binary operations on regular and ideal languages"):
  with members:
    - "complexity of atoms combinatorially"
    - "symmetric groups and quotient complexity of boolean operations"
    - "theory of atomata"
    - "transition complexity of incomplete dfas"
    - "syntactic complexity of ideal and closed languages"
    - "quotient complexity of ideal languages"
    - "quotient complexity of regular languages"

Connected through hyperedge HE-8 (induced by source paper "complexity of suffix free regular languages"):
  with members:
    - "complexity of proper suffix convex regular languages"
    - "most complex non returning regular languages"
    - "complexity of prefix convex regular languages"
    - "syntactic complexity of bifix free languages"
    - "quotient complexities of atoms in regular ideal languages"
    - "upper bounds on syntactic complexity of left and two sided ideals"
    - "complexity of atoms combinatorially"
    - "symmetric groups and quotient complexity of boolean operations"

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)