2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114034In connection with each global field of positive characteristic we exhibit many examples of two-variable algebraic functions possessing properties consistent with a conjectural refinement of the Stark conjecture in the function field case recently proposed by the author (math.NT/0407535). Most notably, all examples are Coleman units. We obtain our results by studying rank one shtukas in which both zero and pole are generic, i.~e., shtukas not associated to any Drinfeld module.25 pages, LaTeXNumber Theory11R37; 11T99text