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arXiv · 2304.06956

Non-Existence of S-Integrable Three-Point Partial Difference Equations in the Lattice Plane

Decio Levi·Miguel A. Rodríguez
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Abstract

Determining if an (1+1)-differential-difference equation is integrable or not (in the sense of possessing an infinite number of symmetries) can be reduced to the study of the dependence of the equation on the lattice points, according to Yamilov's theorem. We shall apply this result to a class of differential-difference equations obtained as partial continuous limits of 3-points difference equations in the plane and conclude that they cannot be integrable.

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Decio Levi, Miguel A. Rodríguez. 2023-04-14. Non-Existence of S-Integrable Three-Point Partial Difference Equations in the Lattice Plane. https://doi.org/10.3842/sigma.2023.084

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