Galerkin truncation of the nonlinear Klein-Gordon equation leads to few-particle mechanical systems whose stationary points match exact Jacobi-elliptic stationary solutions and whose time evolution approximates the field.
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Solving the nonlinear Klein-Gordon equation: semianalytical Galerkin method
Galerkin truncation of the nonlinear Klein-Gordon equation leads to few-particle mechanical systems whose stationary points match exact Jacobi-elliptic stationary solutions and whose time evolution approximates the field.