2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47324We study the prospects for HERA with polarized electron and/or proton beams to determine the functions describing the fragmentation of a longitudinally polarized parton into a polarized Lambda baryon. We examine both semi-inclusive deep-inelastic scattering (SIDIS) and photoproduction of Lambda.13 pages, LaTeX, 6 figures, uses epsfig and a41 (included) styles; Contribution to the proceedings of the 1997 workshop on 'Physics with Polarized Protons at HERA', Hamburg and Zeuthen, Germany, March-September 1997High Energy Physics - Phenomenologytext