Mathematics
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Sal
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"I'll work out some details so you can stand on the precipice and look into this canyon full of garbage, but [we won't] plunge into that pit" - Sidney Coleman, on derivative interactions in canonical quantization

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All Questions Answers
Score Newest
question
27
Wave equation: predicting geometric dispersion with group theory
Oct 16, 2021
question
8
How to approximate a sharply peaked function with deltas?
Mar 5, 2021
question
6
Solving a pair of dual integral equations
Mar 2, 2021
answer
6
Physics books recommendations
Feb 24, 2021
question
5
Is this Laplace BVP well posed? If not, why?
Dec 28, 2020
question
5
Asymptotic expansion of inhomogenous differential equation
Nov 29, 2021
answer
5
Green function of non self adjoint differential equation.
Nov 20, 2022
answer
5
An interesting ODE
Feb 23, 2021
answer
5
Integrating $\frac1{2\sigma\sqrt{2\pi}}\int_{-\infty}^\infty(1+erf(\frac{z-\mu_i}{\sigma_i\sqrt2}))\exp( -\frac12(\frac{z-\mu}\sigma)^2)dz$
Feb 18, 2021
answer
5
Finding the radius of a neutron star that allows all points on its surface to be seen
Aug 17, 2022
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55
Does amplitude really go to infinity in resonance?
10
Earth is accelerated out of the solar system - do we keep the Moon?
5
Getting stuck trying to solve electromagnetic wave equation using Green's function
5
Are there any situations in physics when uniform convergence shouldn't be ignored?

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