Abstract
We frequently want to compare different homology and cohomology groups, when we have cxact Mayer-Vietoris sequences for each, and maps between them. Assuming that most of the maps are isomorphisms, we want to deduce that the others are as well.
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© 1995 Springer Science+Business Media, Inc.
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Fulton, W. (1995). Duality. In: Algebraic Topology. Graduate Texts in Mathematics, vol 153. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-4180-5_24
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DOI: https://doi.org/10.1007/978-1-4612-4180-5_24
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