Mathematics – Algebraic Geometry
Scientific paper
2008-07-07
Mathematics
Algebraic Geometry
final version, minor changes, 24 pages
Scientific paper
The notion of a tamely ramified covering is canonical only for curves.
Several notions of tameness for coverings of higher dimensional schemes have
been used in the literature. We show that all these definitions are essentially
equivalent. Furthermore, we prove finiteness theorems for the tame fundamental
groups of arithmetic schemes.
Kerz Moritz
Schmidt Alexander
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