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Ettore Minguzzi
  • Member for 8 years, 8 months
  • Last seen this week
5 votes

Is the exponential map of a $C^{1,1}$ Riemannian metric a local homeomorphism?

4 votes
Accepted

Can Hartogs' extension theorem be used to prove there's no naked singularity?

4 votes

Are quadrics the cones of maximal symmetry?

4 votes

stability of two-sided sectional curvature bounds in Lorentzian geometry

3 votes
Accepted

conformal changes to Lorentzian curvature

3 votes

Proof that domains of positivity of symmetric nondegenerate bilinear forms are self-dual cones?

3 votes

Properties that only Lorentzian manifolds have

2 votes

Usage/Application of Raychaudhuri equation in Riemann geometry or pure maths

2 votes

Local positivity of solutions to linear differential inequalities (Chaplygin's theorem)

2 votes

Conjugate or focusing points on null geodesics imply chronality

1 vote

Sufficient condition for geodesic convexity/connectedness