Vassilev, Vassil M.; Djondjorov, Peter A.; Mladenov, Ivaïlo M. On the translationally-invariant solutions of the membrane shape equation. (English) Zbl 1125.53008 Mladenov, Ivaïlo (ed.) et al., Proceedings of the 8th international conference on geometry, integrability and quantization, Sts. Constantine and Elena, Bulgaria, June 9–14, 2006. Sofia: Bulgarian Academy of Sciences (ISBN 978-954-8495-37-0/pbk). 312-321 (2007). Summary: The membrane shape equation derived by Helfrich and Ou-Yang describes the equilibrium shapes of biomembranes, built by bilayers of amphiphilic molecules, in terms of the mean and Gaussian curvatures of their middle-surfaces. Here, we present a new class of translationally-invariant solutions to this equation in terms of the elliptic functions which completes the solutions found earlier. In this way, all translationally-invariant solutions to the membrane shape equation are determinded. Special attention is paid to those translationally-invariant solutions of the membrane shape equation which determine closed cylindrical (tube-like) surfaces (membrane shapes). Several examples of such surfaces are presented.For the entire collection see [Zbl 1108.53003]. Reviewer: Kaarin Riives (Tartu) Cited in 1 Document MSC: 53A10 Minimal surfaces in differential geometry, surfaces with prescribed mean curvature 53B50 Applications of local differential geometry to the sciences 76Z05 Physiological flows Keywords:membrane shape equations; closed cylindrical (tube-like) surfaces; mean and Gaussian curvatures PDF BibTeX XML Cite \textit{V. M. Vassilev} et al., in: Proceedings of the 8th international conference on geometry, integrability and quantization, Sts. Constantine and Elena (near Varna), Bulgaria, June 9--14, 2006. Sofia: Bulgarian Academy of Sciences. 312--321 (2007; Zbl 1125.53008) OpenURL