Given a positive function F on Sn which satisfies a convexity condition, we define the r-th anisotropic mean curvature function HrF for hypersurfaces in ℝn+1 which is a generalization of the usual r-th mean curvature function. Let X : M→ℝn+1 be an n-dimensional closed hypersurface with Hr+1F=constant, for some r with 0≤r≤n−1, which is a critical point for a variational problem. We show that X(M) is stable if and only if X(M) is the Wulff shape.
References
H. Alencar, M. do Carmo and H. Rosenberg, On the first eigenvalue of the linearized operator of the $r$-th mean curvature of a hypersurface, Ann. Global Anal. Geom. 11 (1993), 387--395.
J. L. M. Barbosa and A. G. Colares, Stability of hypersurfaces with constant $r$-mean curvature, Ann. Global Anal. Geom. 15 (1997), 277--297.
L. F. Cao and H. Li, $r$-minimal submanifolds in space forms, Ann. Global Anal. Geom. 32 (2007), 311--341.
U. Clarenz, The Wulff-shape minimizes an anisotropicWillmore functional, Interfaces Free Bound. 6 (2004), 351--359.
L. Gårding, An inequality for hyperbolic polynomials, J. Math. Mech. 8 (1959), 957--965.
G. H. Hardy, J. E. Littlewood and G. Polya, Inequalities, Reprint of the 1952 edition, Cambridge Mathematical Library, Cambridge University Press, Cambridge, 1988.
Mathematical Reviews (MathSciNet):
MR944909
Y. J. He and H. Li, Integral formula of Minkowski type and new characterization of the Wulff shape, Acta Math. Sin. (Engl. Ser.) 24 (2008), 697--704.
Y. J. He and H. Li, A new variational characterization of the Wulff shape, Differential Geom. App. 26 (2008), 377--390.
Y. J. He, H. Li, H. Ma and J. Q. Ge, Compact embedded hypersurfaces with constant higher order anisotropic mean curvatures, %\href Indiana Univ. Math. J. 58 (2009), 853--868.
Z. J. Hu and H. Li, Willmore submanifolds in Riemannian manifolds, Proceedings of the Workshop Contem. Geom. and Related Topics (Belgrad, Yugoslavia, May, 2002) 15--21, World Scientific, 2002, pp. 251--275.
M. Koiso and B. Palmer, Geometry and stablity of surfaces with constant anisotropic mean curvature, Indiana Univ. Math. J. 54 (2005), 1817--1852.
H. Li, Hypersurfaces with constant scalar curvature in space forms, Math. Ann. 305 (1996), 665--672.
H. Li, Global rigidity theorems of hypersurfaces, Ark. Mat. 35 (1997), 327--351.
B. Palmer, Stability of the Wulff shape, Proc. Amer. Math. Soc. 126 (1998), 3661--3667.
R. Reilly, Variational properties of functions of the mean curvatures for hypersurfaces in space forms, J. Differential Geom. 8 (1973), 465--477.
R. Reilly, The relative differential geometry of nonparametric hypersurfaces, Duke Math. J. 43 (1976), 705--721.
H. Rosenberg, Hypersurfaces of constant curvature in space forms, Bull. Soc. Math. 117 (1993), 211--239.
J. Taylor, Crystalline variational problems, Bull. Amer. Math. Soc. 84 (1978), 568--588.
S. Winklmann, A note on the stability of the Wulff shape, Arch. Math. 87 (2006), 272--279.
K. Yano, Integral formulas in Riemannian geometry, Dekker, New York, 1970.