User L.F. Cavenaghi

4

10

votes

1

answer

298

views

Positive Ricci curvature on fiber bundles

Nov 19 '18 at 9:04 Ivan Izmestiev 5,380

2

9

votes

1

answer

397

views

Is the set of Lorentzian metrics metrizable?

dg.differential-geometry lorentzian-geometry

Nov 6 '18 at 23:27 YCor 42.5k

1

8

votes

0

answers

230

views

What is nice in gradient flows?

ap.analysis-of-pdes calculus-of-variations gradient-flows

May 18 at 21:01 leo monsaingeon 3,043

3

7

votes

1

answer

1k

views

Geodesics equation on Lie groups with left invariant metrics

lie-groups riemannian-geometry

Apr 17 '17 at 3:10 Tsemo Aristide 3,357

1

6

votes

0

answers

88

views

Can one relate $g(\nabla_XX,\nabla_YY) = |\nabla_XY|^2$ with some characteristic class?

riemannian-geometry characteristic-classes

Feb 5 '20 at 1:33 L.F. Cavenaghi 1,508

1

6

votes

1

answer

241

views

Hessian formula for the sub manifold distance

reference-request riemannian-geometry hessian

Feb 14 '19 at 1:06 Piotr Hajlasz 19.5k

1

6

votes

1

answer

406

views

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

ricci-flow

Nov 20 '17 at 6:25 j.c. 12.7k

5

votes

1

answer

155

views

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

kahler-manifolds calabi-yau kahler-einstein-metric

Jul 24 '17 at 20:15 user25309 6,390

1

4

votes

0

answers

342

views

Curvature on associated vector bundles

dg.differential-geometry

Aug 28 '18 at 21:30 L.F. Cavenaghi 1,508

4

votes

0

answers

88

views

Positive and non-negative sectional curvature of semi-riemannian metrics

curvature semi-riemannian-geometry

Aug 18 '18 at 3:51 L.F. Cavenaghi 1,508

1

3

votes

0

answers

86

views

References and results for the eigenvalues of Ricci tensor

reference-request dg.differential-geometry riemannian-geometry ricci-curvature

Apr 6 at 1:23 L.F. Cavenaghi 1,508

2

3

votes

1

answer

168

views

Saddle points and negative scalar curvature

riemannian-geometry

Nov 24 '19 at 5:15 Paul Siegel 25.8k

1

3

votes

0

answers

123

views

Manifolds with positive sectional curvature almost everywhere

reference-request riemannian-geometry

Apr 29 '19 at 6:11 L.F. Cavenaghi 1,508

1

3

votes

2

answers

334

views

Is this a submanifold?

dg.differential-geometry riemannian-geometry differential-topology group-actions

Mar 10 '19 at 3:54 Steve Costenoble 1,655

2

3

votes

0

answers

96

views

How restrictive is $[\mathcal H,\mathcal V] =0$, or weaker, $[X,A_XY] = 0$?

riemannian-geometry submersions

Aug 30 '18 at 20:42 L.F. Cavenaghi 1,508

3

votes

0

answers

180

views

Maximum principle for parabolic PDE's

ap.analysis-of-pdes parabolic-pde

Oct 13 '17 at 19:20 L.F. Cavenaghi 1,508

2

3

votes

2

answers

194

views

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

homogeneous-spaces

Apr 10 '17 at 18:38 Neil Strickland 43.9k

2

votes

1

answer

92

views

Approximating continuous functions via diffeomorphisms on compact manifolds

real-analysis differential-topology smooth-manifolds

Jan 24 at 23:17 Piotr Hajlasz 19.5k

2

votes

0

answers

33

views

Can elliptic equations have solutions on non weakly closed subsets?

ap.analysis-of-pdes

Jan 24 at 7:43 L.F. Cavenaghi 1,508

2

votes

0

answers

72

views

Examples of bundles with minimal fibers

riemannian-geometry minimal-surfaces submersions

Dec 20 at 21:53 L.F. Cavenaghi 1,508

1

2

votes

0

answers

71

views

Free actions on torus (reference request)

reference-request riemannian-geometry

Dec 20 at 12:11 L.F. Cavenaghi 1,508

2

votes

0

answers

62

views

Analogous $H^1$-space for pseudo inner products

sobolev-spaces elliptic-pde calculus-of-variations semi-riemannian-geometry

May 5 at 1:27 L.F. Cavenaghi 1,508

2

votes

0

answers

65

views

The Hopf conjecture for products and slight modification

riemannian-geometry

Apr 23 at 15:52 L.F. Cavenaghi 1,508

2

votes

0

answers

83

views

Sufficient conditions for constant solutions

ap.analysis-of-pdes elliptic-pde

Mar 31 '20 at 1:33 L.F. Cavenaghi 1,508

1

2

votes

1

answer

134

views

Unbounded curvature implies infinite diameter on complete metric spaces

mg.metric-geometry riemannian-geometry alexandrov-geometry

Dec 20 '19 at 20:04 YCor 42.5k

1

2

votes

0

answers

96

views

Unbounded sectional curvature implies infinite diameter?

dg.differential-geometry riemannian-geometry curvature

Dec 20 '19 at 11:24 Ali Taghavi 391

2

votes

1

answer

235

views

Simple existence and uniqueness for second order and linear elliptic PDE

ap.analysis-of-pdes elliptic-pde

Nov 18 '19 at 22:13 Pedro Lauridsen Ribeiro 4,939

1

2

votes

2

answers

105

views

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

differential-topology foliations

Jun 13 '19 at 14:35 Jorge Vitório Pereira 7,907

2

votes

0

answers

52

views

Realizing curves as geodesics of positively curved metrics

riemannian-geometry

May 28 '19 at 21:40 L.F. Cavenaghi 1,508

2

votes

0

answers

98

views

Ricci flow on Riemannian submersions

riemannian-geometry ricci-flow

May 21 '19 at 18:23 L.F. Cavenaghi 1,508

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42 Questions

Positive Ricci curvature on fiber bundles

Is the set of Lorentzian metrics metrizable?

What is nice in gradient flows?

Geodesics equation on Lie groups with left invariant metrics

Can one relate $g(\nabla_XX,\nabla_YY) = |\nabla_XY|^2$ with some characteristic class?

Hessian formula for the sub manifold distance

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

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

Curvature on associated vector bundles

Positive and non-negative sectional curvature of semi-riemannian metrics

References and results for the eigenvalues of Ricci tensor

Saddle points and negative scalar curvature

Manifolds with positive sectional curvature almost everywhere

Is this a submanifold?

How restrictive is $[\mathcal H,\mathcal V] =0$, or weaker, $[X,A_XY] = 0$?

Maximum principle for parabolic PDE's

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

Approximating continuous functions via diffeomorphisms on compact manifolds

Can elliptic equations have solutions on non weakly closed subsets?

Examples of bundles with minimal fibers

Free actions on torus (reference request)

Analogous $H^1$-space for pseudo inner products

The Hopf conjecture for products and slight modification

Sufficient conditions for constant solutions

Unbounded curvature implies infinite diameter on complete metric spaces

Unbounded sectional curvature implies infinite diameter?

Simple existence and uniqueness for second order and linear elliptic PDE

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

Realizing curves as geodesics of positively curved metrics

Ricci flow on Riemannian submersions