User THW

8 votes

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Sectional curvature of product metric?

answered Dec 9, 2014 at 13:50

6 votes

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Frenet-Serret and Vector Fields

answered Jan 8, 2020 at 18:51

5 votes

Affine connection on a Lie group.

answered Jul 31, 2014 at 22:14

4 votes

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The Curvature Tensor

answered Apr 3, 2014 at 21:02

3 votes

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Formula for the torsion of a regular curve parametrized by arc length

answered Mar 26, 2014 at 2:55

3 votes

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Calculating 1-forms given a function and a vector field

answered Mar 31, 2014 at 2:21

3 votes

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Classifying left invariant metrics on the 3-dimensional heisenberg group

answered Feb 19, 2016 at 20:14

3 votes

Moving frame in a semi-Riemannian manifold

answered Dec 13, 2014 at 18:10

3 votes

how to find an integral curve in Lie group?

answered Feb 13, 2015 at 14:18

3 votes

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Whether Ricci flow keep the diagonal of metric and Ricci tensor?

answered Aug 23, 2016 at 17:28

3 votes

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Lie bracket and Ricci tensor

answered Aug 24, 2016 at 18:53

3 votes

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Integral Curves of a Vector Field

answered May 8, 2014 at 17:55

2 votes

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Map from 2D Hyperboloid to the Poincaré disk.

answered Mar 8, 2018 at 22:51

2 votes

Computing fundamental forms of implicit surface

answered Oct 14, 2016 at 21:03

2 votes

A question in the book of Hamilton's Ricci flow

answered Jul 13, 2017 at 21:09

2 votes

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Linear Algebra Review Questions

answered Mar 29, 2014 at 23:41

2 votes

What is a tangent bundle? (Aubin)

answered Jan 27, 2013 at 21:26

2 votes

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Show that $(f\circ c_{1})'(0)=(f\circ c_{2})'(0)$

answered Jan 28, 2013 at 1:30

2 votes

Showing diffeomorphism between $S^1 \subset \mathbb{R}^2$ and $\mathbb{RP}^1$

answered Feb 10, 2013 at 4:10

2 votes

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When is the restriction of a Lorentzian metric to a regular submanifold degenerate everywhere?

answered Jul 18, 2013 at 16:33

2 votes

given first fundamental form, what type of surface?

answered Oct 24, 2018 at 14:59

2 votes

Isometry group of a lorentzian metric which preserves a Riemannian metric

answered Feb 8, 2019 at 17:00

2 votes

Reference Request - The Theorema Egregium

answered Feb 20, 2019 at 16:59

1 vote

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Geodesic on a surface of revolution using Christoffel Symbols.

answered Feb 22, 2013 at 2:05

1 vote

What is the proof that rectangles do not exist in hyperbolic geometry?

answered Jan 28, 2013 at 2:06

1 vote

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For a differentiable map $\Phi$ between manifolds $M$ and $W$, what is $d\Phi?$ (Aubin)

answered Jan 28, 2013 at 21:35

1 vote

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Geodesic curvature/Metrics in R²

answered Jan 30, 2013 at 5:27

1 vote

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Tangent Space to a manifold

answered Mar 30, 2014 at 0:29

1 vote

A function that looks like determinant

answered Mar 8, 2014 at 2:35

1 vote

A question on tangent vector fields

answered Apr 4, 2014 at 17:32

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41 Answers

Sectional curvature of product metric?

Frenet-Serret and Vector Fields

Affine connection on a Lie group.

The Curvature Tensor

Formula for the torsion of a regular curve parametrized by arc length

Calculating 1-forms given a function and a vector field

Classifying left invariant metrics on the 3-dimensional heisenberg group

Moving frame in a semi-Riemannian manifold

how to find an integral curve in Lie group?

Whether Ricci flow keep the diagonal of metric and Ricci tensor?

Lie bracket and Ricci tensor

Integral Curves of a Vector Field

Map from 2D Hyperboloid to the Poincaré disk.

Computing fundamental forms of implicit surface

A question in the book of Hamilton's Ricci flow

Linear Algebra Review Questions

What is a tangent bundle? (Aubin)

Show that $(f\circ c_{1})'(0)=(f\circ c_{2})'(0)$

Showing diffeomorphism between $S^1 \subset \mathbb{R}^2$ and $\mathbb{RP}^1$

When is the restriction of a Lorentzian metric to a regular submanifold degenerate everywhere?

given first fundamental form, what type of surface?

Isometry group of a lorentzian metric which preserves a Riemannian metric

Reference Request - The Theorema Egregium

Geodesic on a surface of revolution using Christoffel Symbols.

What is the proof that rectangles do not exist in hyperbolic geometry?

For a differentiable map $\Phi$ between manifolds $M$ and $W$, what is $d\Phi?$ (Aubin)

Geodesic curvature/Metrics in R²

Tangent Space to a manifold

A function that looks like determinant

A question on tangent vector fields