On a Carathéodory's conjecture on umbilics : representing ovaloids
On a Conjectured Characterization of the Sphere.
On a problem of W. J. Firey in connection with the characterization of spheres.
On Asymptotic Volume of Tori.
On complete surfaces with Gaussian curvature zero in 3-sphere
On Convex Hypersurfaces in a Space Form.
On convex hypersurfaces in
On equiaffine Weingarten surfaces
On minimal surfaces in
On orthogonal conjugate nets in
On surfaces in with constant Gauss curvature
On surfaces with constant mean curvature
On the curvature of nonregular saddle surfaces in the hyperbolic and spherical three-space.
On the - theorems
On the geometry of convex reflectors
In this paper we consider a special class of convex hypersurfaces in Euclidean space which arise as weak solutions to some inverse problems of recovering reflectors from scattering data. For this class of hypersurfaces we study the notion of the focal function which, while sharing the important convexity property with the classical support function, has the advantage of being exactly the "right tool" for such inverse problems. We also discuss briefly the close analogy between one such inverse problem...
On the -theorem for hypersurfaces
On the non-existence of certain ovaloids
On the Pick invariant
On Weingarten surfaces
Order of holonomy of a surface with projective connection