2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56921We continue our investigation of Discrete Riemann Surfaces with the discussion of the discrete analogs of period matrices, Riemann's bilinear relations, exponential of constant argument, series and electrical moves. We show that given a refining sequence of critical maps, the discrete period matrix converges to the continuous one.35 pages; uses youngtab (provided). Fix some bugs, add comments and examplesMathematical PhysicsComplex Variables30G25; 39A12; 52C26; 49M25text