2026/05/13 by A. V. Tsiganov · 1 voice · 1 citation
Mathematics · Physics and Astronomy · #math-ph #math.DS #nlin.SI
paper · pdf · doi:10.1016/j.geomphys.2026.105914
arxiv published 2026/05/13 · arxiv updated 2026/06/11
Two constructions of the Darboux-Halphen system are discussed. In the Jacobi construction we start with transcendental functions which are fixed as the first integrals. In the Lie construction we use a single-valued representation of the simple Lie algebra sl(2,\mathbb R) which is non-integrable in Lie's terminology.