- **Math**
(*https://www.mersenneforum.org/forumdisplay.php?f=8*)

- - **Inverse Laplace Transform**
(*https://www.mersenneforum.org/showthread.php?t=12986*)

Inverse Laplace TransformI was looking through some tables of Laplace Transforms on f(t) the other day, and I noticed that in all cases, as [TEX]s \to \infty[/TEX], [TEX]F(s) \to 0[/TEX]. A question that I have been trying to prove is that if [TEX]\lim_{s\to\infty}F(s) = 0[/TEX], then does that necessitate whether [TEX]F(s)[/TEX] can undergo an inverse Laplace transform (i.e. by the Bromwich integral)?
I suspect that the answer is "no", but if anyone has some attempt at a proof I would appreciate it (my idea would be to use Post's inversion formula and utilizing the Grunwald-Letnikov differintegral for evaluating [TEX]F^{(k)}\left(\frac{k}{t}\right)[/TEX], but so far this has been futile). |

[QUOTE=flouran;202052]I was looking through some tables of Laplace Transforms on f(t) the other day, and I noticed that in all cases, as [TEX]s \to \infty[/TEX], [TEX]F(s) \to 0[/TEX]. A question that I have been trying to prove is that if [TEX]\lim_{s\to\infty}F(s) = 0[/TEX], then does that necessitate whether [TEX]F(s)[/TEX] can undergo an inverse Laplace transform (i.e. by the Bromwich integral)?
[/QUOTE] No. [QUOTE=flouran;202052] I suspect that the answer is "no", but if anyone has some attempt at a proof I would appreciate it (my idea would be to use Post's inversion formula and utilizing the Grunwald-Letnikov differintegral for evaluating [TEX]F^{(k)}\left(\frac{k}{t}\right)[/TEX], but so far this has been futile).[/QUOTE] Well, I managed to finally prove it. |

All times are UTC. The time now is 13:26. |

Powered by vBulletin® Version 3.8.11

Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.