2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/192508Ambiguities in pseudoscalar-meson photoproduction, arising from incomplete experimental data, have analogs in pion-nucleon scattering. Amplitude ambiguities have important implications for the problems of amplitude extraction and resonance identification in partial-wave analysis. The effect of these ambiguities on observables is described. We compare our results with those found in earlier studies.12 pages of text. No figuresNuclear Theorytext