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Quasi-periodic solutions of Sawada-Kotera equation
AIMS Mathematics 2026, 11(3): 5759-5775
Published: 15 March 2026
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This paper establishes the existence of quasi-periodic solutions to the Sawada-Kotera equation on the torus T . By implementing a Nash-Moser iterative method, we demonstrate that for a prescribed Diophantine frequency vector λ ω ~ , such solutions exist for a set of parameters λ of positive Lebesgue measure.

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