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: "polyadic constacyclic codes"
  Abstract: For any given positive integer $m$, a necessary and sufficient condition for the existence of Type I $m$-adic constacyclic codes is given. Further, for any given integer $s$, a necessary and sufficient condition for $s$ to be a multiplier of a Type I polyadic constacyclic code is given. As an application, some optimal codes from Type I polyadic constacyclic codes, including generalized Reed-Solomon codes and alternant MDS codes, are constructed.

Connected through hyperedge HE-1 (induced by source paper "polyadic constacyclic codes over a non chain ring mathbb f _ q u v langle f u g v uv vu rangle f q u v f u g v u v v u"):
  with members:
    - "iso orthogonality and type ii duadic constacyclic codes"
    - "quadratic residue codes over f_p vf_p and their gray images"
    - "skew constacyclic codes over finite chain rings"

Connected through hyperedge HE-2 (induced by source paper "isometrically self dual cyclic codes"):
  with members:
    - "computational results of duadic double circulant codes"
    - "duadic group algebra codes"

Connected through hyperedge HE-3 (induced by source paper "constacyclic symbol pair codes lower bounds and optimal constructions"):
  with members:
    - "application of constacyclic codes to quantum mds codes"
    - "maximum distance separable codes for symbol pair read channels"

Connected through hyperedge HE-4 (induced by source paper "iso orthogonality and type ii duadic constacyclic codes"):
  with members:
    - "on the existence of self dual permutation codes of finite groups"
    - "computational results of duadic double circulant codes"
    - "constacyclic codes over finite fields"
    - "duadic group algebra codes"

Connected through hyperedge HE-5 (induced by source paper "galois self dual constacyclic codes"):
  with members:
    - "iso orthogonality and type ii duadic constacyclic codes"
    - "computational results of duadic double circulant codes"

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.IT(Information Theory)