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Transactions of the American Mathematical Society
Article . 1989 . Peer-reviewed
Data sources: Crossref
Transactions of the American Mathematical Society
Article . 1989 . Peer-reviewed
Data sources: Crossref
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Torsion points on abelian étale coverings of 𝑃¹-{0,1,∞}

Authors: Robert F. Coleman;

Torsion points on abelian étale coverings of 𝑃¹-{0,1,∞}

Abstract

Let X → P 1 X \to {{\mathbf {P}}^1} be an Abelian covering of degree m m over Q ( μ m ) {\mathbf {Q}}({\mu _m}) unbranched outside 0 0 , 1 1 and ∞ \infty . If the genus of X X is greater than 1 1 embed X X in its Jacobian J J in such a way that one of the points above 0 0 , 1 1 or ∞ \infty is mapped to the origin. We study the set of torsion points of J J which lie on X X . In particular, we prove that this set is defined over an extension of Q {\mathbf {Q}} unramified outside 6 m 6m . We also obtain information about the orders of these torsion points.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Average
Top 10%
Average
bronze