On Compact Riemannian Manifolds with Harmonie Curvature.
Self-dual Kähler manifolds and Einstein manifolds of dimension four
Classification of Certain Compact Riemannian Manifolds with Harmonic Curvature and Non-parallel Ricci Tensor.
On some condition for a submanifold of Euclidean space to be a sphere
Certain connections between time functions and compact spacelike submanifolds
Two-jets of conformal fields along their zero sets
The connected components of the zero set of any conformal vector field v, in a pseudo-Riemannian manifold (M, g) of arbitrary signature, are of two types, which may be called ‘essential’ and ‘nonessential’. The former consist of points at which v is essential, that is, cannot be turned into a Killing field by a local conformal change of the metric. In a component of the latter type, points at which v is nonessential form a relatively-open dense subset that is at the same time a totally umbilical...
Riemannian metrics with harmonic curvature on 2-sphere bundles over compact surfaces
On homogeneous conformally symmetric pseudo-Riemannian manifolds
A lower bound for ... on manifolds with boundary.
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