A generalization of the Chowla-Selberg formula and the zeta functions of quadratic orders
A generalization of the Chowla-Selberg formula and the zeta functions of quadratic orders
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Chowla-Selberg 公式和二次阶 zeta 函数的推广
DOI:
10.3792/pjaa.66.201
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
M. Kaneko
中科院分区:
文献类型:
--
作者:
M. Kaneko
The purpose of this note is to present an identity which generalizes a formula of Chowla and Selberg on the periods o CM elliptic curves in connection with the zeta functions of imaginary quadratic orders. We first proposed the identity as the numerical evidence and then Y. Nakkajima and Y. Taguchi have proved it algebraically by using the technique ro.m arithmetic geometry ([2]). We employ here an analytical approach using zeta functions. 1. Review and result. Let K be an imaginary quadratic field with discriminant D, O its ring o integers, w the order of unit group 0, and Z the quadratic Dirichlet character modulo [D determined by the extension K/Q. For a lattice L in C, define g2(L)--60 ’ 2-, gs(L)= 140 2L and A(L) g2(L)-27g(L). The "discriminant" d(L) is. non-zero and has the property ( 1 ) A(L)=-IA(L) for e C. Take an ideal of K and consider the value F()--A()A(-I). By (1) it depends only on the class o ?I in the ideal elass group Cl(O). Any period of elliptic curves with complex multiplication in K differs by an algebraic cnstant rom the 24-th root of F(). The ormula o ChowlaSelberg expresses the product o F() over CI(OK) by gamma values: