What is called Borel-Moore homology is a homology theory for suitably nice (locally compact) topological spaces, which was introduced in terms of sheaf cohomology in (Borel-Moore 60). Later it was observed that the homology groups obtained this way have the following equivalent description: They arise simply by generalizing in the ordinary definition of singular homology the finite formal linear combinations to locally finite ones. Accordingly, one speaks also of locally finite homology (Spanier 93). A detailed account is in (Hughes-Ranicki 96).
A key property of Borel-Moore/locally finite homology is that on nice enough topological spaces it is naturally isomorphic to the ordinary homology of the one-point compactification of . It is in this way that the theory is often used in practice, as a means for computing homology of one-point compactifications.
The proof of this statement is indicated in (Hughes-Ranicki 96), it passes through comparison with Steenrod homology via results of (Milnor 95).
The original article is
The formulation in terms of locally finite singular homology was highlighted in
and the equivalence to ordinary homology of one-point compactifications is based on results in
Textbook accounts include
Bruce Hughes, Andrew Ranicki, Ends of complexes, Cambridge University Press 1996 (pdf, pdf)
Glen Bredon, Borel-Moore Homology, chapter in Sheaf Theory, Volume 170 of the series Graduate Texts in Mathematics pp 279-416
See also
Wikipedia, Borel-Moore homology
Joel Lemay, Borel-Moore Homology, 2012 (pdf)
Martin Olsson, Borel-Moore homology, Riemann-Roch transformations, and local terms (pdf)
Last revised on July 21, 2017 at 16:29:01. See the history of this page for a list of all contributions to it.