2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40126The dual Higgs model is reformulated in terms of two-point Wightman functions with the equations of motion involving higher derivatives. In the system of the test color charges an analytic expression for the string tension is derived.7 pages, latex, no figures, no tables; talk at XXIII International Colloquium on Group Theoretical Methods in Physics (Dubna 31.07 - 5.08, 2000)High Energy Physics - Phenomenologytext