human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "quotient complexities of atoms in regular ideal languages"):
  Abstract: A (left) quotient of a language $L$ by a word $w$ is the language $w^{-1}L=\{x\mid wx\in L\}$. The quotient complexity of a regular language $L$ is the number of quotients of $L$; it is equal to the state complexity of $L$, which is the number of states in a minimal deterministic finite automaton accepting $L$. An atom of $L$ is an equivalence class of the relation in which two words are equivalent if for each quotient, they either are both in the quotient or both not in it; hence it is a non-empty intersection of complemented and uncomplemented quotients of $L$. A right (respectively, left and two-sided) ideal is a language $L$ over an alphabet $\Sigma$ that satisfies $L=L\Sigma^*$ (respectively, $L=\Sigma^*L$ and $L=\Sigma^*L\Sigma^*$). We compute the maximal number of atoms and the maximal quotient complexities of atoms of right, left and two-sided regular ideals.

Includes members:
  Member "maximally atomic languages":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "towards a theory of complexity of regular languages")
  Member "upper bounds on syntactic complexity of left and two sided ideals":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "towards a theory of complexity of regular languages")
  Member "quotient complexities of atoms of regular languages":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "complexity of left ideal suffix closed and suffix free regular languages")
  Member "theory of atomata":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "a co algebraic theory of succinct automata")
  Member "syntactic complexity of ideal and closed languages":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "towards a theory of complexity of regular languages")
  Member "quotient complexity of ideal languages":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "primitivity uniform minimality and state complexity of boolean operations")
  Member "quotient complexity of regular languages":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "complexity of the frobenius monoid problem for a finite language")

Question: Please tell me which class the source paper 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)