Timeline for Comparing two power-series
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 26, 2021 at 19:17 | comment | added | Fedor Petrov | Introduce new variable $z$ and think that $1\gg |z|\gg |q|$. Then for Laurent series $h(q)$ we have $[q^{>0}]h(q)={\rm CT}_z \frac{z}{1-z} h(q/z)$, where ${\rm CT}_z$ stands for the constant term w.r.t. $z$. Did you try this? | |
| Jul 23, 2021 at 8:56 | comment | added | Arkadij | Thanks Timothy, I have tried this. The main difficulty for me here was precisely [q>0]w(q)^{-j}, which I was unable rephrase in any reasonable way. This is indeed the only difficult part for me. | |
| Jul 23, 2021 at 8:15 | history | answered | Timothy Budd | CC BY-SA 4.0 |