A classification theorem for Helfrich surfaces

Details A classification theorem for Helfrich surfaces A classification theorem for Helfrich surfaces

2012-01-22

arxiv.org/abs/1201.4540v1

Mathematics

Differential Geometry

21 pages

Scientific paper

In this paper we study the functional $\SW_{\lambda_1,\lambda_2}$, which is the the sum of the Willmore energy, $\lambda_1$-weighted surface area, and $\lambda_2$-weighted volume, for surfaces immersed in $\R^3$. This coincides with the Helfrich functional with zero `spontaneous curvature'. Our main result is a complete classification of all smooth immersed critical points of the functional with $\lambda_1\ge0$ and small $L^2$ norm of tracefree curvature. In particular we prove the non-existence of critical points of the functional for which the surface area and enclosed volume are positively weighted.

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