2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80002The isomonodromy deformation equation for a 2x2 matrix linear ODE with a large parameter can be locally reduced to a (hyper)elliptic equation. To globalize this result, we apply the isomonodromy deformation method and obtain the modulation equations for the asymptotic algebraic curve. The method is applied to the degenerate solution of the Painleve first equation.24 pages, LaTeX; additional references, example and comments are includedExactly Solvable and Integrable SystemsHigh Energy Physics - TheoryClassical Analysis and ODEstext