Ziller, Wolfgang Max Planck Institute for Mathematics, Max Planck Society;
Verdiani_concavity_oa_2014.pdf (Any fulltext), 227KB
Verdiani, L., & Ziller, W. (2014). Concavity and rigidity in non-negative curvature. Journal of Differential Geometry, 97(2), 349-375. Retrieved from http://arxiv.org/abs/1012.2265.