User L.F. Cavenaghi

7 votes

1 answer

2k views

Geodesics equation on Lie groups with left invariant metrics

asked Apr 16, 2017 at 21:17

3 votes

1 answer

1k views

Simple existence and uniqueness for second order and linear elliptic PDE

asked Nov 18, 2019 at 20:18

2 votes

0 answers

891 views

What is nice in projective manifolds?

asked Sep 5, 2017 at 22:54

7 votes

2 answers

729 views

Ricci flow is not a gradient flow for $L^2$-space of metrics

asked Nov 18, 2017 at 21:01

6 votes

1 answer

656 views

Hessian formula for the sub manifold distance

asked Feb 12, 2019 at 15:51

5 votes

1 answer

534 views

A corollary of the non-existence of positive scalar curvature

asked May 10, 2021 at 14:02

9 votes

1 answer

525 views

Is the set of Lorentzian metrics metrizable?

asked Oct 24, 2018 at 1:43

4 votes

0 answers

447 views

Curvature on associated vector bundles

asked May 22, 2017 at 22:05

10 votes

1 answer

382 views

Positive Ricci curvature on fiber bundles

asked Nov 15, 2018 at 18:18

3 votes

2 answers

363 views

Is this a submanifold?

asked Mar 9, 2019 at 18:35

2 votes

2 answers

341 views

Unbounded curvature implies infinite diameter on complete metric spaces

asked Dec 20, 2019 at 14:10

5 votes

2 answers

340 views

An extra condition on Frobenius theorem for $1$-forms

asked Jun 13, 2019 at 5:48

6 votes

1 answer

333 views

Unbounded sectional curvature implies infinite diameter?

asked Dec 20, 2019 at 4:08

1 vote

0 answers

304 views

How to estimate the norm of Jacobi fields or to compute $\langle J(0),J'(0)\rangle$

asked Feb 25, 2019 at 1:19

8 votes

0 answers

282 views

What is nice in gradient flows?

asked May 31, 2017 at 23:41

3 votes

2 answers

264 views

Homogenous structure on $S^2\times S^2$ and its geometry

asked Apr 10, 2017 at 15:17

3 votes

1 answer

258 views

Saddle points and negative scalar curvature

asked Nov 24, 2019 at 4:16

1 vote

0 answers

248 views

Classical solutions for parabolic PDE's

asked Nov 17, 2017 at 21:49

3 votes

0 answers

237 views

Maximum principle for parabolic PDE's

asked Oct 13, 2017 at 19:20

6 votes

1 answer

201 views

Is there any relativistic interpretation on considering Kaehler-Einstein metrics and Calabi-Yau manifolds?

asked Jul 24, 2017 at 18:58

2 votes

1 answer

189 views

Approximating continuous functions via diffeomorphisms on compact manifolds

asked Jan 24, 2021 at 7:47

2 votes

0 answers

180 views

The Hopf conjecture for products and slight modification

asked Apr 23, 2020 at 15:39

3 votes

0 answers

174 views

References and results for the eigenvalues of Ricci tensor

asked Apr 6, 2020 at 0:43

2 votes

0 answers

157 views

When is a simply connected Lie group with an invariant metric of positive sectional curvature compact?

asked Aug 30, 2017 at 0:10

3 votes

0 answers

142 views

Manifolds with positive sectional curvature almost everywhere

asked Apr 29, 2019 at 6:11

1 vote

0 answers

141 views

Is the standard $\mathbb R^4$ the only one with positive sectional curvature?

asked Oct 4, 2022 at 21:51

0 votes

0 answers

140 views

When linear strongly elliptic operators are invertible?

asked Jun 17, 2020 at 19:16

2 votes

1 answer

140 views

Preserving connections immersions

asked Oct 21, 2017 at 1:09

0 votes

1 answer

138 views

Is $\int_M\Delta u = 0$ if $u$ is not $C^2$ on a set of measure zero?

asked May 15, 2020 at 23:46

2 votes

0 answers

128 views

Free actions on torus (reference request)

asked Dec 20, 2020 at 12:11

Stack Exchange Network

48 Questions

Geodesics equation on Lie groups with left invariant metrics

Simple existence and uniqueness for second order and linear elliptic PDE

What is nice in projective manifolds?

Ricci flow is not a gradient flow for $L^2$-space of metrics

Hessian formula for the sub manifold distance

A corollary of the non-existence of positive scalar curvature

Is the set of Lorentzian metrics metrizable?

Curvature on associated vector bundles

Positive Ricci curvature on fiber bundles

Is this a submanifold?

Unbounded curvature implies infinite diameter on complete metric spaces

An extra condition on Frobenius theorem for $1$-forms

Unbounded sectional curvature implies infinite diameter?

How to estimate the norm of Jacobi fields or to compute $\langle J(0),J'(0)\rangle$

What is nice in gradient flows?

Homogenous structure on $S^2\times S^2$ and its geometry

Saddle points and negative scalar curvature

Classical solutions for parabolic PDE's

Maximum principle for parabolic PDE's

Is there any relativistic interpretation on considering Kaehler-Einstein metrics and Calabi-Yau manifolds?

Approximating continuous functions via diffeomorphisms on compact manifolds

The Hopf conjecture for products and slight modification

References and results for the eigenvalues of Ricci tensor

When is a simply connected Lie group with an invariant metric of positive sectional curvature compact?

Manifolds with positive sectional curvature almost everywhere

Is the standard $\mathbb R^4$ the only one with positive sectional curvature?

When linear strongly elliptic operators are invertible?

Preserving connections immersions

Is $\int_M\Delta u = 0$ if $u$ is not $C^2$ on a set of measure zero?

Free actions on torus (reference request)