2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94537The equations that define the Lax pairs for generalized principal chiral models can be solved for any constant nondegenerate bilinear form on SU(2). Necessary conditions for the nonconstant metric on SU(2) that define the integrable models are given.Talk given at the Workshop on Backlund and Darboux Transformations. The geometry of Soliton Theory. June 4-9, 1999 (Halifax, Nova Scotia), 10 pages, Latex2e, no figuresExactly Solvable and Integrable SystemsHigh Energy Physics - Theorytext