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: "geometry of the 3 user mimo interference channel"
  Abstract: This paper studies vector space interference alignment for the three-user MIMO interference channel with no time or frequency diversity. The main result is a characterization of the feasibility of interference alignment in the symmetric case where all transmitters have M antennas and all receivers have N antennas. If N >= M and all users desire d transmit dimensions, then alignment is feasible if and only if (2r+1)d  = N. #R##N#It turns out that, just as for the 3-user parallel interference channel \cite{BT09}, the length of alignment paths captures the essence of the problem. In fact, for each feasible value of M and N the maximum alignment path length dictates both the converse and achievability arguments. #R##N#One of the implications of our feasibility criterion is that simply counting equations and comparing to the number of variables does not predict feasibility. Instead, a more careful investigation of the geometry of the alignment problem is required. The necessary condition obtained by counting equations is implied by our new feasibility criterion.

Connected through hyperedge HE-1 (induced by source paper "genie chains exploring outer bounds on the degrees of freedom of mimo interference networks"):
  with members:
    - "feasibility of interference alignment for the mimo interference channel"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "degrees of freedom of mimo x networks spatial scale invariance one sided decomposability and linear feasibility"
    - "degrees of freedom of interference channels with comp transmission and reception"
    - "subspace alignment chains and the degrees of freedom of the three user mimo interference channel"
    - "settling the feasibility of interference alignment for the mimo interference channel the symmetric square case"
    - "interference alignment for the k user mimo interference channel"

Connected through hyperedge HE-2 (induced by source paper "channel diversity needed for vector space interference alignment"):
  with members:
    - "feasibility of interference alignment for the mimo interference channel"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "settling the feasibility of interference alignment for the mimo interference channel the symmetric square case"
    - "on feasibility of interference alignment in mimo interference networks"
    - "on feasibility of interference alignment in mimo interference networks"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "approaching the capacity of wireless networks through distributed interference alignment"

Connected through hyperedge HE-3 (induced by source paper "feasibility of interference alignment for the mimo interference channel"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "on the number of interference alignment solutions for the k user mimo channel with constant coefficients"
    - "interference alignment using finite and dependent channel extensions the single beam case"
    - "the approximate sum capacity of the symmetric gaussian k user interference channel"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "interactive interference alignment"
    - "degrees of freedom of interference channels with comp transmission and reception"

Connected through hyperedge HE-4 (induced by source paper "the dof of the asymmetric mimo interference channel with square direct link channel matrices"):
  with members:
    - "genie chains exploring outer bounds on the degrees of freedom of mimo interference networks"
    - "feasibility of interference alignment for the mimo interference channel"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "subspace alignment chains and the degrees of freedom of the three user mimo interference channel"
    - "settling the feasibility of interference alignment for the mimo interference channel the symmetric square case"
    - "interference alignment for the mimo interference channel with delayed local csit"
    - "interference alignment for the k user mimo interference channel"
    - "degrees of freedom of the k user m times n mimo interference channel"

Connected through hyperedge HE-5 (induced by source paper "on the capacity of the finite field counterparts of wireless interference networks"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "the feasibility conditions for interference alignment in mimo networks"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "on the feasibility of precoding based network alignment for three unicast sessions"
    - "degrees of freedom of mimo x networks spatial scale invariance one sided decomposability and linear feasibility"
    - "index coding an interference alignment perspective"
    - "subspace alignment chains and the degrees of freedom of the three user mimo interference channel"

Connected through hyperedge HE-6 (induced by source paper "genie tree and degrees of freedom of the symmetric mimo interfering broadcast channel"):
  with members:
    - "genie chains exploring outer bounds on the degrees of freedom of mimo interference networks"
    - "feasibility of interference alignment for the mimo interference channel"
    - "the feasibility conditions for interference alignment in mimo networks"
    - "alternating rate profile optimization in single stream mimo interference channels"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "degrees of freedom of mimo cellular networks decomposition and linear beamforming design"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"

Connected through hyperedge HE-7 (induced by source paper "degrees of freedom of certain interference alignment schemes with distributed csit"):
  with members:
    - "csit sharing over finite capacity backhaul for spatial interference alignment"
    - "interference alignment with quantized grassmannian feedback in the k user constant mimo interference channel"
    - "sum capacity of interference channels with a local view impact of distributed decisions"
    - "interference alignment with incomplete csit sharing"
    - "on achieving local view capacity via maximal independent graph scheduling"
    - "on the capacity of memoryless finite state multiple access channels with asymmetric state information at the encoders"
    - "cooperative algorithms for mimo interference channels"
    - "downlink interference alignment"

Connected through hyperedge HE-8 (induced by source paper "on the number of interference alignment solutions for the k user mimo channel with constant coefficients"):
  with members:
    - "feasibility of interference alignment for the mimo interference channel"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "settling the feasibility of interference alignment for the mimo interference channel the symmetric square case"
    - "the approximate capacity of the many to one and one to many gaussian interference channels"
    - "on feasibility of interference alignment in mimo interference networks"
    - "downlink interference alignment"
    - "on feasibility of interference alignment in mimo interference networks"

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)