2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57424Two discrete path integral formulations for the ground state of a spin-pinned quantum anisotropic XXZ Heisenberg chain are introduced. Their properties are discussed and two recursion relations are proved.13 pages, typos corrected, few remarkes added. To appear in Markov Processes and Related FieldsMathematical Physicstext