2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/24814I discuss a Bogoliubov inequality for obtaining a rigorous bound on the maximal axial extension of inhomogeneous one-dimensional Bose-Einstein condensates. An explicit upper limit for the aspect ratio of a strongly elongated, harmonically trapped Thomas-Fermi condensate is derived.6 pages; contributed paper for Quantum Fluids and Solids, Trento 2004, to appear in JLTPOther Condensed Mattertext