van Kampen’s theorem for 𝑛-stage covers

Chipman, J. C.

doi:10.1090/S0002-9947-1974-0339122-1

van Kampen’s theorem for $n$-stage covers
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Trans. Amer. Math. Soc. 192 (1974), 357-370 Request permission

Abstract:

A version of van Kampen’s theorem is obtained for covers whose members do not share a common point and whose pairwise intersection need not be connected.

References

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Groups discrets

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On the connection between the fundamental groups of some related spaces

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