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: "dominating induced matchings in graphs containing no long claw"
  Abstract: An induced matching $M$ in a graph $G$ is dominating if every edge not in $M$ shares exactly one vertex with an edge in $M$. The dominating induced matching problem (also known as efficient edge domination) asks whether a graph $G$ contains a dominating induced matching. This problem is generally NP-complete, but polynomial-time solvable for graphs with some special properties. In particular, it is solvable in polynomial time for claw-free graphs. In the present paper, we study this problem for graphs containing no long claw, i.e. no induced subgraph obtained from the claw by subdividing each of its edges exactly once. To solve the problem in this class, we reduce it to the following question: given a graph $G$ and a subset of its vertices, does $G$ contain a matching saturating all vertices of the subset? We show that this question can be answered in polynomial time, thus providing a polynomial-time algorithm to solve the dominating induced matching problem for graphs containing no long claw.

Connected through hyperedge HE-1 (induced by source paper "finding dominating induced matchings in s_ 2 2 3 free graphs in polynomial time"):
  with members:
    - "dominating induced matchings in s_ 1 2 4 free graphs"

Connected through hyperedge HE-2 (induced by source paper "perfect edge domination hard and solvable cases"):
  with members:
    - "efficient and perfect domination on circular arc graphs"
    - "exact algorithms for dominating induced matching based on graph partition"
    - "an o 1 1939 n time algorithm for minimum weighted dominating induced matching"
    - "exact algorithms for dominating induced matchings"
    - "efficient dominating and edge dominating sets for graphs and hypergraphs"

Connected through hyperedge HE-3 (induced by source paper "independent feedback vertex set for p_5 free graphs"):
  with members:
    - "minimum connected transversals in graphs new hardness results and tractable cases using the price of connectivity"
    - "independent feedback vertex sets for graphs of bounded diameter"
    - "polynomial time algorithm for maximum weight independent set on p_6 free graphs"
    - "faster deterministic feedback vertex set"
    - "finding small separators in linear time via treewidth reduction"

Connected through hyperedge HE-4 (induced by source paper "phoeg helps obtaining extremal graphs"):
  with members:
    - "digenes genetic algorithms to discover conjectures about directed and undirected graphs"
    - "practical graph isomorphism ii"

Connected through hyperedge HE-5 (induced by source paper "dominating induced matchings for p_8 free graphs in polynomial time"):
  with members:
    - "efficient dominating and edge dominating sets for graphs and hypergraphs"

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.DM(Discrete Mathematics)