Integrability properties of Kahan始s method
Integrability properties of Kahan始s method
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茅 equation.We also discuss how Manin transformations arise in Kahan discretizations of certain vector fields.