2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17582The interplay of Umklapp scattering from a periodic potential and other scattering processes determine the conductivity of (quasi) one-dimensional metals. We show that the transport at finite temperature is qualitatively and quantitatively strongly influenced by a number of approximate conservation laws. Typically, not the strongest but the second strongest scattering mechanism determines the dc-conductivity. We discuss the optical conductivity both of strongly anisotropic, quasi one-dimensional Fermi liquids and of Luttinger liquids.talk given at the spring meeting of the DPG 2001, to be published in Advances in Solid State Physics, 41Strongly Correlated Electronstext