I was wondering if anything is known about the roots of $J' = \frac{dJ}{d\tau}$. Here, $J(\tau) = j(\tau)/12^3$ is Klein's absolute invariant. Some roots can be calculated (at least I know how to), but is anything general known?
2026-03-25 11:03:24.1774436604
The roots of $J' = \frac{dJ}{d\tau}$
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