Trigonal modular curves X0*(N)

被引:6
|
作者
Hasegawa, Y [1 ]
Shimura, M [1 ]
机构
[1] Waseda Univ, Dept Math Sci, Shinjuku Ku, Tokyo 1698555, Japan
关键词
modular curve; trigonal curve; Atkin-Lehner involution;
D O I
10.3792/pjaa.76.83
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For a positive integer N, let X-0(*)(N) denote the quotient curve of X-0(N) by the Atkin-Lehner involutions. In this paper, we determine the trigonality of X-0(*)(N) for all N. It turns out that there are seven values of N for which X-0(*)(N) is a non-trivial trigonal curve.
引用
收藏
页码:83 / 86
页数:4
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