Type: Seminar

Distribution: World

Expiry: 12 Jun 2019

CalTitle1: Triangular Schlesinger systems, Painleve VI equations, and superelliptic curves

Auth: ega@dora.maths.usyd.edu.au

Prof. Vladimir Dragovic (UT Dallas, USA)

** Title: Triangular Schlesinger systems, Painleve VI equations, and superelliptic curves **

** Abstract:** We study the Schlesinger system in the case when the unknown matrices of arbitrary size (p×p) are triangular and the eigenvalues of each matrix form an arithmetic progression with a rational difference q, the same for all matrices. We show that such a system
possesses a family of solutions expressed via periods of meromorphic differentials on the Riemann surfaces of superelliptic curves. We determine the values of the difference q, for which our solutions lead to explicit polynomial or rational solutions of the Schlesinger system. As an application of
the (2 × 2)-case, we obtain explicit sequences of rational solutions and one-parameter families of rational solutions of Painleve VI equations. This is a joint work with Renat Gontsov and Vasilisa Shramchenko.