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7 questions

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manifolds×
sagemanifolds×

158

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answer

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2019-09-27 22:41:00 +0200 eric_g

Transformation of derivative under a change of chart

sagemanifolds
manifolds

272

views

answers

vote

2020-07-10 06:14:08 +0200 wintermute

Defining $S^1$ with four charts

sagemanifolds
manifolds

180

views

answer

vote

2022-08-16 19:32:45 +0200 eric_g

Sage Manifolds: Asymptotically de Sitter Spacetime in Fefferman-Graham Gauge

sagemanifolds
manifolds
physics
math

339

views

answer

votes

2019-10-11 00:53:12 +0200 JGC

Inverse of the transition map on a Manifold doesn't hold

manifolds
sagemanifolds

143

views

answers

votes

2021-04-12 06:19:54 +0200 perfectly_odd

Is there a way to compute the "correct" distributional answer, -4pidirac_delta(r), as the Laplacian of 1/r (in spherical coordinates on Euclidean space)?

manifolds
sagemanifolds
dirac_delta

294

views

answer

votes

2024-01-03 10:28:39 +0200 idontgetoutmuch

Connection Forms not Anti-Symmetric

manifolds
sagemanifolds

150

views

answer

votes

2024-02-28 11:20:08 +0200 eric_g

Confused about covariant derivatives and tensors in SageMath

tensor-fields
sagemanifolds
manifolds
covariant_derivative

7 questions

Transformation of derivative under a change of chart

Defining $S^1$ with four charts

Sage Manifolds: Asymptotically de Sitter Spacetime in Fefferman-Graham Gauge

Inverse of the transition map on a Manifold doesn't hold

Is there a way to compute the "correct" distributional answer, -4pidirac_delta(r), as the Laplacian of 1/r (in spherical coordinates on Euclidean space)?

Connection Forms not Anti-Symmetric

Confused about covariant derivatives and tensors in SageMath

Contributors

Tags

7 questions

Transformation of derivative under a change of chart

Defining $S^1$ with four charts

Sage Manifolds: Asymptotically de Sitter Spacetime in Fefferman-Graham Gauge

Inverse of the transition map on a Manifold doesn't hold

Is there a way to compute the "correct" distributional answer, -4*pi*dirac_delta(r), as the Laplacian of 1/r (in spherical coordinates on Euclidean space)?

Connection Forms not Anti-Symmetric

Confused about covariant derivatives and tensors in SageMath

Contributors

Tags

Is there a way to compute the "correct" distributional answer, -4pidirac_delta(r), as the Laplacian of 1/r (in spherical coordinates on Euclidean space)?