Bases for S_k(\Gamma_1(4)) and formulas for even powers of the Jacobi theta function
Bases for S_k(\Gamma_1(4)) and formulas for even powers of the Jacobi theta function
复制标题
S_k(Gamma_1(4)) 的基础和雅可比 theta 函数偶次幂的公式
DOI:
10.1142/s1793042113500693
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Yifan Yang
中科院分区:
文献类型:
--
作者:
Shinji Fukuhara;Yifan Yang
We find a basis for the space Sk(Γ1(4)) of cusp forms of weight k for the congruence subgroup Γ1(4) in terms of Eisenstein series. As an application, we obtain formulas for r2k(n), the number of ways to represent a non-negative integer n as sums of 2k integer squares.