Albanese Maps and Fundamental Groups of Varieties With Many Rational Points Over Function Fields

We investigate properties of the Albanese map and the fundamental group of a complex projective variety with many rational points over some function field and prove that every linear quotient of the fundamental group of such a variety is virtually abelian, as well as that its Albanese map is surject...

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Veröffentlicht in:International mathematics research notices 2022-12, Vol.2022 (24), p.19354-19398
Hauptverfasser: Javanpeykar, Ariyan, Rousseau, Erwan
Format: Artikel
Sprache:eng
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Zusammenfassung:We investigate properties of the Albanese map and the fundamental group of a complex projective variety with many rational points over some function field and prove that every linear quotient of the fundamental group of such a variety is virtually abelian, as well as that its Albanese map is surjective, has connected fibres, and has no multiple fibres in codimension one.
ISSN:1073-7928
1687-0247
DOI:10.1093/imrn/rnab255