List questions from perturbation-theory

Published on 04 Dec 2023 - 0:55

43

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behavior of SDE as parameter goes to infinity (Ornstein-Uhlembeck?)

Published on 05 Dec 2023 - 5:43

118

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Perturbing a measure $\mu$ so that the integral $\int fd\mu$ becomes nonzero

Published on 06 Dec 2023 - 0:10

65

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Determine the two-term expansion for large roots of the transcendental equation $\tan(x) =\frac 1x$

Published on 06 Dec 2023 - 8:15

66

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Leading-order approximation of $\int_0^{\infty} e^{t-z(t^4-2t^2)}\sin^2(2\pi\nu t)~dt$

Published on 09 Dec 2023 - 20:19

95

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Asymptotic expansion of $\int_{\xi}^{\infty}\frac{e^{-\alpha t}}{t}dt$

Published on 09 Dec 2023 - 23:17

56

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Finding eigenvalues of a turning point ODE using WKB method

Published on 12 Dec 2023 - 2:37

366

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Exact solution to Dirac delta perturbation for particle in a box

Published on 26 Mar 2026 - 2:25

41

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Approximate solution to ODE potentially using perturbation theory

Published on 09 Jan 2024 - 11:53

35

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Convergence rate of eigenvectors for perturbed matrices

Published on 25 Jan 2024 - 22:14

33

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On estimating $\exp(-iHt)$ when $H$ is perturbed

Published on 25 Mar 2026 - 23:36

26

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Book suggestions for Perturbation Theory in Quantum Mechanics

Published on 15 Feb 2024 - 14:31

22

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Interpolation of perturbed rotations and approximating the linearized effect of doubly perturbed rotations

Published on 01 Mar 2024 - 17:52

26

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How is changing the boundary conditions a finite rank perturbation?

Published on 25 Mar 2026 - 21:49

102

Views

Birth-death : Always more than 1 bifurcation?

Published on 26 Mar 2026 - 6:05

List Question

Two Timing (Multiple Time Scales) with Coupled IVPs

behavior of SDE as parameter goes to infinity (Ornstein-Uhlembeck?)

Perturbing a measure $\mu$ so that the integral $\int fd\mu$ becomes nonzero

Determine the two-term expansion for large roots of the transcendental equation $\tan(x) =\frac 1x$

Leading-order approximation of $\int_0^{\infty} e^{t-z(t^4-2t^2)}\sin^2(2\pi\nu t)~dt$

Asymptotic expansion of $\int_{\xi}^{\infty}\frac{e^{-\alpha t}}{t}dt$

Finding eigenvalues of a turning point ODE using WKB method

Exact solution to Dirac delta perturbation for particle in a box

Approximate solution to ODE potentially using perturbation theory

Convergence rate of eigenvectors for perturbed matrices

On estimating $\exp(-iHt)$ when $H$ is perturbed

Book suggestions for Perturbation Theory in Quantum Mechanics

Interpolation of perturbed rotations and approximating the linearized effect of doubly perturbed rotations

How is changing the boundary conditions a finite rank perturbation?

Birth-death : Always more than 1 bifurcation?

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