2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16961In Phys. Rev. Lett. 84, 1760 (2000) A.O.Gogolin has challenged the established point of view that Mott's law for the dynamical conductivity of a 1 dimensional insulator is correct. We present the result of a numerical solution of Berezinskii's recursion relations that demonstrate unambigously that the earlier solutions are indeed valid in contrast to Gogolin's claim.Comment on Phys. Rev. Lett. 84, 1760 (2000), by A.O.Gogolin; 1 page, 1 figureMesoscale and Nanoscale Physicstext