A fast algorithm for finding small solutions of F(X, Y) = G(X, Y) over number fields

被引:2
|
作者
Gaál, I [1 ]
机构
[1] Univ Debrecen, Math Inst, H-4010 Debrecen, Hungary
基金
匈牙利科学研究基金会;
关键词
Thue equations; binary form equations; computing small solutions; reduction; enumeration;
D O I
10.1007/s10474-005-0004-6
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let M be a number field of degree m with ring of integers Z(M). Let F is an element of Z(M) [X, Y] be a form of degree n such that F(X,1) has distinct roots. Let G is an element of Z[X, Y] be an arbitrary polynomial of degree k. Assuming that k <= n-2m+1 if all roots of F-(i)(X, 1) (1 <= i <= n) are complex and k <= n-4m+1 otherwise, we provide an efficient algorithm for finding all solutions X, Y is an element of Z(M), max (vertical bar X vertical bar, vertical bar Y vertical bar) < C of the inequality vertical bar F(X,Y)vertical bar <= c (.) vertical bar G(X,Y)vertical bar. We provide numerical examples with m = 3 and C = 10(100).
引用
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页码:41 / 51
页数:11
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