Open covers, locally sectionable maps, sets of base points, and van Kampen's theorem

Ronald Brown; George Janelidze; George Peschke

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arXiv · 1910.11620

Open covers, locally sectionable maps, sets of base points, and van Kampen's theorem

Ronald Brown·George Janelidze·George Peschke

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Abstract

We generalize the van Kampen theorem for unions of non-connected spaces, due to R. Brown and A. R. Salleh, to the context where families of subspaces of a space B are replaced by a locally sectionable map to B.

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Ronald Brown, George Janelidze, George Peschke. 2019-10-25. Open covers, locally sectionable maps, sets of base points, and van Kampen's theorem. https://arxiv.org/abs/1910.11620

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