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: "weighted well covered claw free graphs"
  Abstract: A graph G is well-covered if all its maximal independent sets are of the same cardinality. Assume that a weight function w is defined on its vertices. Then G is w-well-covered if all maximal independent sets are of the same weight. For every graph G, the set of weight functions w such that G is w-well-covered is a vector space. Given an input claw-free graph G, we present an O(n^6)algortihm, whose input is a claw-free graph G, and output is the vector space of weight functions w, for which G is w-well-covered. A graph G is equimatchable if all its maximal matchings are of the same cardinality. Assume that a weight function w is defined on the edges of G. Then G is w-equimatchable if all its maximal matchings are of the same weight. For every graph G, the set of weight functions w such that G is w-equimatchable is a vector space. We present an O(m*n^4 + n^5*log(n)) algorithm which receives an input graph G, and outputs the vector space of weight functions w such that G is w-equimatchable.

Connected through hyperedge HE-1 (induced by source paper "equimatchable claw free graphs"):
  with members:
    - "powers of tensors and fast matrix multiplication"
    - "domination when the stars are out"

Connected through hyperedge HE-2 (induced by source paper "complexity results on w well covered graphs"):
  with members:
    - "weighted well covered graphs without cycles of length 4 6 and 7"
    - "on relating edges in graphs without cycles of length 4"

Connected through hyperedge HE-3 (induced by source paper "complexity results for generating subgraphs"):
  with members:
    - "well covered graphs without cycles of lengths 4 5 and 6"
    - "on relating edges in graphs without cycles of length 4"

Connected through hyperedge HE-4 (induced by source paper "well dominated graphs without cycles of lengths 4 and 5"):
  with members:
    - "complexity results for generating subgraphs"
    - "well covered graphs without cycles of lengths 4 5 and 6"

Connected through hyperedge HE-5 (induced by source paper "well covered graphs without cycles of lengths 4 5 and 6"):
  with members:
    - "complexity results on w well covered graphs"
    - "on relating edges in graphs without cycles of length 4"

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)