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: "a streamlined difference ring theory indefinite nested sums the alternating sign and the parameterized telescoping problem"
  Abstract: We present an algebraic framework to represent indefinite nested sums over hyper geometric expressions in difference rings. In order to accomplish this task, parts of Karr's difference field theory have been extended to a ring theory in which also the alternating sign can be expressed. The underlying machinery relies on algorithms that compute all solutions of a given parameterized telescoping equation. As a consequence, we can solve the telescoping and creative telescoping problem in such difference rings.

Connected through hyperedge HE-1 (induced by source paper "towards a symbolic summation theory for unspecified sequences"):
  with members:
    - "representing q hypergeometric products and mixed versions in difference rings"
    - "summation theory ii characterizations of boldsymbol r pi sigma extensions and algorithmic aspects"
    - "algebraic independence of sequences generated by cyclotomic harmonic sums"
    - "a difference ring theory for symbolic summation"
    - "fast algorithms for refined parameterized telescoping in difference fields"
    - "a refined difference field theory for symbolic summation"

Connected through hyperedge HE-2 (induced by source paper "representing q hypergeometric products and mixed versions in difference rings"):
  with members:
    - "summation theory ii characterizations of boldsymbol r pi sigma extensions and algorithmic aspects"
    - "a difference ring theory for symbolic summation"
    - "on the structure of compatible rational functions"
    - "fast algorithms for refined parameterized telescoping in difference fields"
    - "parameterized telescoping proves algebraic independence of sums"
    - "a refined difference field theory for symbolic summation"

Connected through hyperedge HE-3 (induced by source paper "algorithms to solve coupled systems of differential equations in terms of power series"):
  with members:
    - "summation theory ii characterizations of boldsymbol r pi sigma extensions and algorithmic aspects"
    - "a toolbox to solve coupled systems of differential and difference equations"
    - "inverse mellin transform of holonomic sequences"
    - "algebraic independence of cyclotomic harmonic sums"
    - "a difference ring theory for symbolic summation"
    - "recent symbolic summation methods to solve coupled systems of differential and difference equations"
    - "modern summation methods for loop integrals in quantum field theory the packages sigma evaluatemultisums and sumproduction"
    - "complexity estimates for two uncoupling algorithms"

Connected through hyperedge HE-4 (induced by source paper "summation theory ii characterizations of boldsymbol r pi sigma extensions and algorithmic aspects"):
  with members:
    - "algebraic independence of cyclotomic harmonic sums"
    - "a difference ring theory for symbolic summation"
    - "simplifying multiple sums in difference fields"
    - "creative telescoping for holonomic functions"
    - "fast algorithms for refined parameterized telescoping in difference fields"
    - "order degree curves for hypergeometric creative telescoping"
    - "on the existence of telescopers for mixed hypergeometric terms"
    - "parameterized telescoping proves algebraic independence of sums"

Connected through hyperedge HE-5 (induced by source paper "a toolbox to solve coupled systems of differential and difference equations"):
  with members:
    - "algebraic independence of cyclotomic harmonic sums"
    - "a difference ring theory for symbolic summation"
    - "recent symbolic summation methods to solve coupled systems of differential and difference equations"
    - "modern summation methods for loop integrals in quantum field theory the packages sigma evaluatemultisums and sumproduction"
    - "complexity estimates for two uncoupling algorithms"
    - "simplifying multiple sums in difference fields"
    - "a symbolic summation approach to feynman integral calculus"
    - "parameterized telescoping proves algebraic independence of sums"

Connected through hyperedge HE-6 (induced by source paper "algebraic independence of cyclotomic harmonic sums"):
  with members:
    - "summation theory ii characterizations of boldsymbol r pi sigma extensions and algorithmic aspects"
    - "a difference ring theory for symbolic summation"
    - "the package harmonicsums computer algebra and analytic aspects of nested sums"
    - "fast algorithms for refined parameterized telescoping in difference fields"
    - "a symbolic summation approach to find optimal nested sum representations"
    - "parameterized telescoping proves algebraic independence of sums"
    - "a refined difference field theory for symbolic summation"

Connected through hyperedge HE-7 (induced by source paper "algebraic independence of sequences generated by cyclotomic harmonic sums"):
  with members:
    - "a difference ring theory for symbolic summation"
    - "the package harmonicsums computer algebra and analytic aspects of nested sums"
    - "simplifying multiple sums in difference fields"
    - "fast algorithms for refined parameterized telescoping in difference fields"
    - "a symbolic summation approach to find optimal nested sum representations"
    - "parameterized telescoping proves algebraic independence of sums"
    - "a refined difference field theory for symbolic summation"

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.SC(Symbolic Computation)