2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/183027We study decay of a flat unstable D$p$-brane in the context of boundary string field theory action. Three types of homogeneous rolling tachyons are obtained without and with Born-Infeld type electromagnetic field.15 pages, 8 figuresHigh Energy Physics - Theorytext