Revisiting the focal conic structures in smetic [i.e, smectic] A
journal contributionposted on 01.01.1996, 00:00 by David Kinderlehrer, Chun Liu
Abstract: "Smectic A configurations in equilibrium display complicated focal conic textures. In the planar case, we view these configurations as extremals of a constrained Ginzburg-Landau Equation. This gives rise to a system governed by a variational principle that is subject to simple rules."