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Rational Approximate Symmetries of KdV Equation

Jen-Hsu Chang
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Abstract

We construct one-parameter deformation of the Dorfman Hamiltonian operator for the Riemann hierarchy using the quasi-Miura transformation from topological field theory. In this way, one can get the approximately rational symmetries of KdV equation and then investigate its bi-Hamiltonian structure.

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Jen-Hsu Chang. 2003-06-13. Rational Approximate Symmetries of KdV Equation. https://doi.org/10.1088/0305-4470%2F36%2F29%2F308

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