On the finiteness of maps into simple abelian varieties satisfying certain tangency conditions

Abstract We show that given a simple abelian variety and a normal variety defined over a finitely generated field of characteristic zero, the set of non‐constant morphisms satisfying certain tangency conditions imposed by a Campana orbifold divisor on is finite. To do so, we study the geometry of the scheme parameterizing such morphisms from a smooth curve and show that it admits a quasi‐finite non‐dominant morphism to .

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Publication Details

Journal
Bulletin of the London Mathematical Society
Published
2025-06-13
DOI
https://doi.org/10.1112/blms.70119
Primary Topic
Algebraic Geometry and Number Theory
Type
article
Field-Weighted Citation Impact
0.00
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article

On the finiteness of maps into simple abelian varieties satisfying certain tangency conditions

Finn Bartsch
Bulletin of the London Mathematical Society
Algebraic Geometry and Number Theory
article

On the finiteness of maps into simple abelian varieties satisfying certain tangency conditions

Finn Bartsch
article en

Abstract

Abstract We show that given a simple abelian variety and a normal variety defined over a finitely generated field of characteristic zero, the set of non‐constant morphisms satisfying certain tangency conditions imposed by a Campana orbifold divisor on is finite. To do so, we study the geometry of the scheme parameterizing such morphisms from a smooth curve and show that it admits a quasi‐finite non‐dominant morphism to .

Bulletin of the London Mathematical SocietyVol. 57(9)
Radboud University Nijmegen (NL)
Openalex Percentile: Top 81%
Algebraic Geometry and Number Theory
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On the finiteness of maps into simple abelian varieties satisfying certain tangency conditions — Finn Bartsch · Bulletin of the London Mathematical Society (2025) | TGRS Research Map | TGRS