2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/149977The purpose of this paper is to give a linear and effective height inequality for algebraic points on curves over functional fields. Our height inequality can be viewed as the logarithmic canonical class inequality of a punctured curve over a functional field (a fibered surface minus a section).14 pages, AmSTeX 2.1 This paper will appear in J. reine angew. MathAlgebraic Geometrytext