Let $X$ be a path connected scheme (we have an argument that this is implied by connected and Noetherian). When is the topological fundamental group of $X$ trivial? This is straightforward for certain special cases like that of an integral scheme, but we haven't been able to come up with a more general characterization.
2026-04-06 05:24:36.1775453076
When is a scheme topologically simply connected?
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