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arXiv · 2410.22434

Discrete-time systems in quasi-standard form and the $\mathfrak{h}_6$ coalgebra symmetry

Pavel Drozdov·Giorgio Gubbiotti
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Abstract

In this paper, we characterize all discrete-time systems in quasi-standard form admitting coalgebra symmetry with respect to the Lie--Poisson algebra $\mathfrak{h}_{6}$. The outcome of this study is a family of systems depending on an arbitrary function of three variables, playing the r\^ole of the potential. Moreover, using a direct search approach, we classify discrete-time systems from this family that admit an additional invariant at most quadratic in the physical variables. We discuss the integrability properties of the obtained cases, their relationship with known systems, and their continuum limits.

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Pavel Drozdov, Giorgio Gubbiotti. 2024-10-29. Discrete-time systems in quasi-standard form and the $\mathfrak{h}_6$ coalgebra symmetry. https://doi.org/10.1088/1402-4896%2Fadb6fd

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