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Michael Engelhardt's user avatar
Michael Engelhardt's user avatar
Michael Engelhardt
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View all questions and answers
answer
43
Why is the Fourier transform so ubiquitous?
Feb 11, 2020
answer
40
Do we lose any solutions when applying separation of variables to partial differential equations?
Dec 26, 2020
answer
23
Is there a general solution for the differential equation $f''(x) = f(f(x))$?
Feb 17, 2021
answer
20
Why is resonance such a widespread phenomenon?
Sep 12
answer
17
Motivation and physical interpretation of the Laplace transform
Feb 15
answer
15
How to compute $\sin(\frac{d}{dx})f(x)$?
Dec 18, 2022
answer
15
The Planck constant for mathematicians
Sep 11, 2019
answer
12
Is there a real-analytic way to derive the asymptotics of $\int_{-\infty}^\infty e^{ikx} e^{-k^4}\,dk$ as $|x|\to\infty$?
Nov 6, 2021
answer
12
How would you work out this integral as a series?
May 25, 2022
answer
12
Papers on arXiv solving the same problem at the same time
Aug 24, 2019