User Ettore Minguzzi - MathOverflow

Ettore Minguzzi

Member for 10 years, 6 months
Last seen more than a month ago

sites.google.com/unifi.it/…
Florence, Italy

11 Answers

Score Activity Newest

6 votes

Properties that only Lorentzian manifolds have

answered Jan 22, 2022 at 11:02

4 votes

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

answered Sep 27, 2013 at 18:16

4 votes

Accepted

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

answered Oct 7, 2013 at 12:49

4 votes

Are quadrics the cones of maximal symmetry?

answered Nov 7, 2019 at 20:45

4 votes

stability of two-sided sectional curvature bounds in Lorentzian geometry

answered Mar 4, 2021 at 9:24

3 votes

Accepted

conformal changes to Lorentzian curvature

answered Feb 19, 2021 at 11:16

3 votes

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

answered Nov 30, 2014 at 11:36

3 votes

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

answered May 16, 2015 at 14:54

2 votes

Conjugate or focusing points on null geodesics imply chronality

answered Mar 5, 2015 at 16:05

2 votes

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

answered Mar 11, 2021 at 10:38

1 vote

Sufficient condition for geodesic convexity/connectedness

answered Aug 3, 2021 at 17:35