Higher rank subgroups in the class groups of imaginary function fields

被引:5
作者
Lee, Yoonjin [1 ]
Pacelli, Allison M.
机构
[1] Simon Fraser Univ, Dept Math, Burnaby, BC V5A 1S6, Canada
[2] Williams Coll, Dept Math, Williamstown, MA 01267 USA
关键词
D O I
10.1016/j.jpaa.2005.09.001
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let F be a finite field and T a transcendental element over F. In this paper, we construct, for integers m and n relatively prime to the characteristic of F(T), infinitely many imaginary function fields K of degree m over F(T) whose class groups contain subgroups isomorphic to (Z/nZ)(m). This increases the previous rank of m - 1 found by the authors in [Y. Lee, A. Pacelli, Class groups of imaginary function fields: The inert case, Proc. Amer. Math. Soc. 133 (2005) 2883-2889]. (c) 2005 Elsevier B.V. All rights reserved.
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页码:51 / 62
页数:12
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