Integral division points on curves

被引:4
作者
Grant, David [1 ]
Ih, Su-Ion [1 ]
机构
[1] Univ Colorado, Dept Math, Boulder, CO 80309 USA
关键词
division group; division point; integral point; primitive divisor; Schinzel's theorem; Siegel's theorem; PREPERIODIC POINTS; DIOPHANTINE APPROXIMATION; NONDENSITY PROPERTY; FINITENESS PROPERTY; EQUATIONS;
D O I
10.1112/S0010437X13007318
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let k be a number field with algebraic closure (k) over bar, and let S be a finite set of primes of k containing all the in finite ones. Let E/k be an elliptic curve, Gamma(0) be a finitely generated subgroup of E ((k) over bar), and Gamma subset of E ((k) over bar) the division group attached to Gamma(0). Fix an effective divisor D of E with support containing either: (i) at least two points whose difference is not torsion; or (ii) at least one point not in. We prove that the set of Gamma integral division points on E ((k) over bar)', i.e., the set of points of Gamma which are S-integral on E relative to D; is finite. We also prove the G(m)-analogue of this theorem, thereby establishing the 1-dimensional case of a general conjecture we pose on integral division points on semi-abelian varieties.
引用
收藏
页码:2011 / 2035
页数:25
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