Homology of Abelian Coverings of Links and Spatial Graphs

Makoto Sakuma

Type: Article

Publication Date: 1995-02-01

Citations: 61

DOI: https://doi.org/10.4153/cjm-1995-010-2

Abstract

Abstract We give (1) a formula of the first Betti numbers of abelian coverings of links in terms of the Alexander ideals, (2) certain estimates of the orders of the torsion parts of their first homology groups in terms of the Alexander polynomials, and (3) a structure theorem of the first homology groups of -coverings of spatial graphs. As an application, we generalize a result of E. Hironaka on polynomial periodicity of the first Betti numbers in certain towers of abelian coverings of complex surfaces.

Locations

Canadian Journal of Mathematics - View - PDF

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