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Integrability properties of Kahan's method
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Integrability properties of Kahan's method
classification
nlin.SI
cs.NAmath.NA
keywords
kahansystemsexamplesfieldsintegrabilitymethodvectorarise
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We present several novel examples of integrable quadratic vector fields for which Kahan's discretization method preserves integrability. Our examples include generalized Suslov and Ishii systems, Nambu systems, Riccati systems, and the first Painlev\'e equation. We also discuss how Manin transformations arise in Kahan discretizations of certain vector fields.
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