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: "modern summation methods for loop integrals in quantum field theory the packages sigma evaluatemultisums and sumproduction"
  Abstract: A large class of Feynman integrals, like e.g., two-point parameter integrals with at most one mass and containing local operator insertions, can be transformed to multi-sums over hypergeometric expressions. In this survey article we present a difference field approach for symbolic summation that enables one to simplify such definite nested sums to indefinite nested sums. In particular, the simplification is given -if possible- in terms of harmonic sums, generalized harmonic sums, cyclotomic harmonic sums or binomial sums. Special emphasis is put on the developed Mathematica packages Sigma, EvaluateMultiSums and SumProduction that assist in the task to perform these simplifications completely automatically for huge input expressions.

Connected through hyperedge HE-1 (induced by source paper "a refined machinery to calculate large moments from coupled systems of linear differential equations"):
  with members:
    - "minimal representations and algebraic relations for single nested products"
    - "computing the inverse mellin transform of holonomic sequences using kovacic s algorithm"
    - "representing q hypergeometric products and mixed versions in difference rings"
    - "algorithms to solve coupled systems of differential equations in terms of power series"
    - "a toolbox to solve coupled systems of differential and difference equations"
    - "algebraic independence of sequences generated by cyclotomic harmonic sums"
    - "a difference ring theory for symbolic summation"
    - "the package harmonicsums computer algebra and analytic aspects of nested sums"

Connected through hyperedge HE-2 (induced by source paper "computer algebra tools for feynman integrals and related multi sums"):
  with members:
    - "representing q hypergeometric products and mixed versions in difference rings"
    - "a toolbox to solve coupled systems of differential and difference equations"
    - "algebraic independence of sequences generated by cyclotomic harmonic sums"
    - "a difference ring theory for symbolic summation"
    - "complexity estimates for two uncoupling algorithms"
    - "ore polynomials in sage"
    - "a symbolic summation approach to feynman integral calculus"

Connected through hyperedge HE-3 (induced by source paper "refined holonomic summation algorithms in particle physics"):
  with members:
    - "representing q hypergeometric products and mixed versions in difference rings"
    - "a difference ring theory for symbolic summation"
    - "complexity estimates for two uncoupling algorithms"
    - "fast algorithms for refined parameterized telescoping in difference fields"
    - "a symbolic summation approach to feynman integral calculus"
    - "advanced computer algebra algorithms for the expansion of feynman integrals"
    - "a fast approach to creative telescoping"
    - "a refined difference field theory for symbolic summation"

Connected through hyperedge HE-4 (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"
    - "a streamlined difference ring theory indefinite nested sums the alternating sign and the parameterized telescoping problem"
    - "recent symbolic summation methods to solve coupled systems of differential and difference equations"
    - "complexity estimates for two uncoupling algorithms"

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"
    - "a streamlined difference ring theory indefinite nested sums the alternating sign and the parameterized telescoping problem"
    - "recent symbolic summation methods to solve coupled systems of differential and difference equations"
    - "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 "a difference ring theory for symbolic summation"):
  with members:
    - "simplifying multiple sums in difference fields"
    - "creative telescoping for holonomic functions"
    - "fast algorithms for refined parameterized telescoping in difference fields"
    - "a symbolic summation approach to feynman integral calculus"
    - "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 "fast algorithms for refined parameterized telescoping in difference fields"):
  with members:
    - "simplifying multiple sums in difference fields"
    - "desingularization explains order degree curves for ore operators"
    - "creative telescoping for holonomic functions"
    - "order degree curves for hypergeometric creative telescoping"
    - "a symbolic summation approach to feynman integral calculus"
    - "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)