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6 questions

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manifold×

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2021-10-29 14:47:57 +0200 rburing

Differentiate vector field w.r.t a variable not defining the chart

derivative
manifold
chart
variables

118

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answer

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2021-04-29 00:12:46 +0200 eric_g

Differential forms on non-standard spherical coordinates

differential_form
coordinates
manifold

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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)?

manifold
sagemanifolds
dirac_delta

232

views

answers

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

Defining $S^1$ with four charts

sagemanifolds
manifold
sagemanifold
manifolds

175

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answer

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2020-04-30 10:00:00 +0200 eric_g

Multiprocess hangs

sage
manifold
multiprocessing
sagemanifolds
windows10

179

views

answer

votes

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

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

manifolds
manifold
sagemanifolds
sagemanifold

6 questions

Differentiate vector field w.r.t a variable not defining the chart

Differential forms on non-standard spherical coordinates

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)?

Defining $S^1$ with four charts

Multiprocess hangs

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

Contributors

Tags

6 questions

Differentiate vector field w.r.t a variable not defining the chart

Differential forms on non-standard spherical coordinates

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)?

Defining $S^1$ with four charts

Multiprocess hangs

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

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)?