2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114328We present a large family of Spin(p,q)-valued discrete spectral problems. The associated discrete nets generated by the so called Sym-Tafel formula are circular nets (i.e., all elementary quadrilaterals are inscribed into circles). These nets are discrete analogues of smooth multidimensional immersions in R^m including isothermic surfaces, Guichard nets, and some other families of orthogonal nets.11 pagesExactly Solvable and Integrable Systemstext