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《中国物理快报：英文版》
>Symmetries of the Variable Coefficient KdV Equation and Three Hierarchies of the Integrodifferential Variable Coefficient KdV Equation
Symmetries of the Variable Coefficient KdV Equation and Three Hierarchies of the Integrodifferential Variable Coefficient KdV Equation
By using a simple method to factorize the recursion operator,the inverse recursion operator of the variable coefficient KdV cquqtion is exhibited explicitly.Thee new sets of symmetries of the variable coefficient KdV equation arc given in addition to the known K symmetries andτsymmetries.Starting from these three sets of symmetries,we obtained three hierarchies of the variable coefficient KdV integro-differential equations.
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机译：Space-Time Fractional KdV–Burger–Kuramato Equation with Time Dependent Variable Coefficients: Lie Symmetry, Explicit Power Series Solution, Convergence Analysis and Conservation Laws
机译：Empirical investigation of the performance of mplus for analyzing structural equation model with mixed continuous and ordered categorical variables.
