Michael Engelhardt

Member for 5 years, 11 months
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ap.analysis-of-pdes

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Answers

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43

Why is the Fourier transform so ubiquitous?

Feb 11, 2020

40

Do we lose any solutions when applying separation of variables to partial differential equations?

Dec 26, 2020

23

Is there a general solution for the differential equation $f''(x) = f(f(x))$?

Feb 17, 2021

20

Why is resonance such a widespread phenomenon?

Sep 12

17

Motivation and physical interpretation of the Laplace transform

Feb 15

Questions

6

Is there a sense in which one could expand $\frac{\sin (x/\epsilon )}{x} $ in powers of $\epsilon $?

Jan 18, 2020

5

Leap year formula to arbitrary precision

Oct 26, 2022

4

Diagonalization of a specific Dirac operator

Mar 7, 2022

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ap.analysis-of-pdes

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mp.mathematical-physics

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fourier-transform

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real-analysis

68

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differential-equations

59

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8

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Reputation

+10

Green's function for a linear PDE initial value problem

+535

Self-adjointness of generator and semigroup of an SDE

+45

Is the evolution family self-adjoint?

+10

Existence of solutions to a series of integral equations

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