3 papers
nlin.SI2025
Non-integrability of the Sasano system of type
Tsvetana Stoyanova
The Sasano sytem of type is a four-dimensional non-linear system of ordinary differential equations, which has an affine Weyl group of symmetries of type . I…
nlin.SI2025
Non-Integrability of the Sasano System of Type and Stokes Phenomena
Tsvetana Stoyanova
In 2006, Y. Sasano proposed higher-order Painlevé systems, which admit affine Weyl group symmetry of type , . In this paper, we study the integrabilit…
math-ph2024
Non-integrability of the rational Sasano system of type
Tsvetana Stoyanova
In this paper we study the integrability of the Sasano system of type from the point of view of the Hamiltonian dynamics. We prove rigorously that for these values of t…