Volume-preserving anisotropic mean curvature flow Ben Andrews 35K5535B4053A0758G11convex hypersurfacesanisotropicvolume-preserving mean curvature flowMinkowski differential geometry Indiana University Mathematics Journal 2001 text pdf 10.1512/iumj.2001.50.1853 10.1512/iumj.2001.50.1853 en Indiana Univ. Math. J. 50 (2001) 783 - 828 state-of-the-art mathematics http://iumj.org/access/