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: "bounds on the maximum multiplicity of some common geometric graphs"
  Abstract: We obtain new lower and upper bounds for the maximum multiplicity of some weighted and, respectively, non-weighted common geometric graphs drawn on n points in the plane in general position (with no three points collinear): perfect matchings, spanning trees, spanning cycles (tours), and triangulations. #R##N#(i) We present a new lower bound construction for the maximum number of triangulations a set of n points in general position can have. In particular, we show that a generalized double chain formed by two almost convex chains admits {\Omega}(8.65^n) different triangulations. This improves the bound {\Omega}(8.48^n) achieved by the double zig-zag chain configuration studied by Aichholzer et al. #R##N#(ii) We present a new lower bound of {\Omega}(12.00^n) for the number of non-crossing spanning trees of the double chain composed of two convex chains. The previous bound, {\Omega}(10.42^n), stood unchanged for more than 10 years. #R##N#(iii) Using a recent upper bound of 30^n for the number of triangulations, due to Sharir and Sheffer, we show that n points in the plane in general position admit at most O(68.62^n) non-crossing spanning cycles. #R##N#(iv) We derive lower bounds for the number of maximum and minimum weighted geometric graphs (matchings, spanning trees, and tours). We show that the number of shortest non-crossing tours can be exponential in n. Likewise, we show that both the number of longest non-crossing tours and the number of longest non-crossing perfect matchings can be exponential in n. Moreover, we show that there are sets of n points in convex position with an exponential number of longest non-crossing spanning trees. For points in convex position we obtain tight bounds for the number of longest and shortest tours. We give a combinatorial characterization of the longest tours, which leads to an O(nlog n) time algorithm for computing them.

Connected through hyperedge HE-1 (induced by source paper "a new lower bound on the maximum number of plane graphs using production matrices"):
  with members:
    - "point sets with many non crossing perfect matchings"
    - "counting plane graphs cross graph charging schemes"

Connected through hyperedge HE-2 (induced by source paper "from crossing free graphs on wheel sets to embracing simplices and polytopes with few vertices"):
  with members:
    - "a new lower bound on the maximum number of plane graphs using production matrices"
    - "approximating the simplicial depth"
    - "counting plane graphs perfect matchings spanning cycles and kasteleyn s technique"
    - "counting triangulations of planar point sets"

Connected through hyperedge HE-3 (induced by source paper "colored ray configurations"):
  with members:
    - "counting plane graphs perfect matchings spanning cycles and kasteleyn s technique"
    - "the clique problem in ray intersection graphs"
    - "counting plane graphs flippability and its applications"
    - "counting triangulations of planar point sets"

Connected through hyperedge HE-4 (induced by source paper "point sets with many non crossing perfect matchings"):
  with members:
    - "the number of non crossing perfect plane matchings is minimized almost only by point sets in convex position"

Connected through hyperedge HE-5 (induced by source paper "counting and enumerating crossing free geometric graphs"):
  with members:
    - "peeling and nibbling the cactus subexponential time algorithms for counting triangulations and related problems"
    - "counting triangulations and other crossing free structures approximately"
    - "a simple sweep line algorithm for counting triangulations and pseudo triangulations"
    - "counting plane graphs cross graph charging schemes"
    - "counting plane graphs perfect matchings spanning cycles and kasteleyn s technique"
    - "counting plane graphs flippability and its applications"
    - "counting triangulations of planar point sets"

Connected through hyperedge HE-6 (induced by source paper "monotone paths in geometric triangulations"):
  with members:
    - "on simplex pivoting rules and complexity theory"
    - "counting plane graphs cross graph charging schemes"
    - "how many potatoes are in a mesh"
    - "counting plane graphs perfect matchings spanning cycles and kasteleyn s technique"
    - "counting triangulations of planar point sets"

Connected through hyperedge HE-7 (induced by source paper "counting triangulations and other crossing free structures approximately"):
  with members:
    - "counting and enumerating crossing free geometric graphs"
    - "a simple sweep line algorithm for counting triangulations and pseudo triangulations"
    - "counting triangulations and other crossing free structures via onion layers"
    - "counting plane graphs perfect matchings spanning cycles and kasteleyn s technique"
    - "counting plane graphs flippability and its applications"
    - "counting triangulations of planar point sets"

Connected through hyperedge HE-8 (induced by source paper "on k gons and k holes in point sets"):
  with members:
    - "counting plane graphs perfect matchings spanning cycles and kasteleyn s technique"
    - "counting triangulations of planar point sets"

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)