2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/29733We consider the Peierls instability due to the interaction of electrons with both acoustic and optical phonons. We suggest that such a transition takes place in carbon nanotubes with small radius. The topological excitations and the temperature dependence of the conductivity resulting from the electron-lattice interactions are considered.5 pages, 3 PostScript figures included; submitted to Phys. Rev. LettSoft Condensed Mattertext