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Monthly Archives: July 2021
What is a semicovering map?
I’ve heard twice in the past year from folks who study nonArchimedian geometry and have found connections to “semicoverings,” which are a generalization of covering maps used in wild topology. The questions I received had me revisiting the basics and … Continue reading
The Griffiths twin cone and the harmonic archipelago have isomorphic fundamental group (Part 3)
We saw in the previous post that the problem of producing our isomorphism is solved provided we can produce a sufficiently large coherent collection of coi triples. But how is this to be accomplished? For example, given a (perhaps quite … Continue reading
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