2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/145224Given a function f in the exterior of a convex curve in the real plane, we prove that if the restrictions of f to the tangent lines to the curve extend as entire functions, then the function f is an entire function of two variables.7 pagesComplex Variables32D15, 32V25Analytic continuation from a family of linestext