2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57261We study the singularity of the Kontsevich's solution of the WDVV equations of associativity. We prove that it corresponds to a singularity in the change of two coordinates systems of the Frobenius manifold given by the quantum cohomology of $CP^2$.12 pagesMathematical Physicstext