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Transactions of the American Mathematical Society

ISSN 1088-6850(online) ISSN 0002-9947(print)



Homology of deleted products of one-dimensional spaces

Authors: Arthur H. Copeland and C. W. Patty
Journal: Trans. Amer. Math. Soc. 151 (1970), 499-510
MSC: Primary 55.30
MathSciNet review: 0264651
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Abstract: The object of this paper is to investigate the homology of deleted products of finitely triangulated one-dimensional spaces. By direct calculation, we obtain upper bounds for the two-dimensional Betti numbers, and, using a rather small system of topological types of spaces appearing as subspaces of the space under consideration, we obtain lower bounds for these Betti numbers. We demonstrate that, in general, the two-dimensional Betti numbers are larger than they were originally thought to be.

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Keywords: Betti numbers, deleted product, embedding, linear graph
Article copyright: © Copyright 1970 American Mathematical Society

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