On the curves of genue g with automorphisms of prime order $2g+1$

On the curves of genue g with automorphisms of prime order $2g+1$
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具有素数阶自同构 $2g 1$ 的 genue g 曲线

DOI:
10.21099/tkbjm/1496159451
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发表时间:
1982
影响因子:
0.7
通讯作者:
A. Seyama
A. Seyama
中科院分区:
--
文献类型:
--
作者:
A. Seyama

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在K上。则C(r,s)的亏格为(q―l)j2,且C(r,s)有q阶自同构.在§1中,我们将给出C(r,s)上第一类空间01微分的基,其形式适合于我们以后的应用。在§2中,我们将给出C(r,s)fs关于r和s同构的一个条件。这是我们的主要结果。特别地,我们看到同构类集合的基数是,如果q=\ mod 3,则为(#+5)/i,如果q=2 mod 3,则为(#+1)/6。在§3中,我们确定了C(r,s)在特征为零的情况下的自同构群的阶。在此,作者对T. Sekiguchi an< Dr. M.本间感谢他们在编写本文件期间给予的鼓励。
over k. Then the genus of C(r,s) is (q―l)j2 and C(r,s) has an automorphism o order q. In §1, we shallgive a basis of the space 01 differentialsof the firstkinc on C(r,s),in forms suitable to our later use. In §2, we shall give a conditioi under which C(r,s)fsare isomorphic in terms of r and s. This is our main result In particular,we see that the cardinalityof the set of isomorphy classes is,(#+5)/i if q=\ mod 3, and (#+l)/6 if q=2 mod 3. In §3, we determine the order of tin group of automorphisms of C(r,s) in the case of characteristiczero. The auther should like to express his sincere thanks to Dr. T. Sekiguchi an< Dr. M. Homma for their encouragement during the preparation of this paper.