Abstract
Recall that the definition of H*(G, M) and H*(G, M) allows us to choose an arbitrary projective resolution P = (Pi)i≥0 of ℤ over ℤG. Similarly, if we wish to take the topological point of view, then we can compute H*(G, M) and H*(G, M) in terms of an arbitrary K(G, 1)-complex Y. Since we have this freedom of choice, it is reasonable to try to choose P (or Y) to be as “small” as possible, and this leads to various finiteness conditions on G.
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© 1982 Springer-Verlag New York Inc.
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Brown, K.S. (1982). Finiteness Conditions. In: Cohomology of Groups. Graduate Texts in Mathematics, vol 87. Springer, New York, NY. https://doi.org/10.1007/978-1-4684-9327-6_9
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DOI: https://doi.org/10.1007/978-1-4684-9327-6_9
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