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文献信息
PHYSICSTopological IndicesBell PolynomialsTopological IndexGenerating FunctionStirling NumbersBernoulli NumbersUmbral CalculusVertex SetNormal SubgroupZagreb IndicesExplicit FormulasDifferential EquationsAdjacency MatrixGAMMA FunctionFinite-dimensional RepresentationGraph TheoryZagreb IndexDirect ProductFractional Differential Equations