2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50277Based on the DBI action for the four coincident non-BPS D9-branes in the type IIA string theory we demonstrate that the gauge symmetry breaking through the tachyon condensation into the generalized monopole of codimension five produces a pair of two coincident BPS D4-branes. The nontrivial gauge field configuration is studied and shown to yield the non-zero generalized magnetic charge. We discuss how this explicit demonstration is related with the higher K-theory group.11 pages, LaTeX2e, no figuresHigh Energy Physics - TheoryGauge Symmetry Breaking and Generalized Monopole in Non-BPS D-Brane Actiontext