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Complex, contact, Riemannian, pseudo-Riemannian and Finsler geometry, relativity, gauge theory, global analysis.

13 votes
1 answer
421 views

A question on Riemannian manifolds without conjugate points

Consider the plane $\mathbb{R}^2$ with a complete metric $g$ without conjugate points. We will denote by $K$ the Gaussian curvature. Question: Is there a constant $C >0$ such that $K(p) \leq C$, for …
italo lira's user avatar
4 votes
1 answer
613 views

Is there an example of a Killing vector field on a complete Riemannian manifold with finite ...

Is there a Killing vector field on a complete Riemannian manifold $M$ with finite volume that satisfies the condition $$\displaystyle\liminf_{r\rightarrow +\infty} \displaystyle\frac{1}{r} \displayst …
italo lira's user avatar