Surfaces in three-dimensional space forms with divergence-free stress-bienergy tensor
arXiv:1204.1484
Abstract
We introduce the notion of biconservative hypersurfaces, that is hypersurfaces with conservative stress-energy tensor with respect to the bienergy. We give the (local) classification of biconservative surfaces in 3-dimensional space forms.
Final version to appear in Ann. Mat. Pura Appl