The hypergeometric function $_2F_1(a,b,c,z)$ has a branch cut extending from $z=1$ to $z=\infty$. Does this define an infinite-sheeted Riemann surface (like that for $\log{z}$) or one with a finite number of sheets (like that for $\sqrt{z}$)?
2026-03-25 08:12:38.1774426358
Riemann surface of the hypergeometric function
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