Multiplicative property of representation numbers of ternary quadratic forms
Multiplicative property of representation numbers of ternary quadratic forms
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DOI:
10.1007/s00229-017-0964-1
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发表时间:
2018-07
影响因子:
0.6
通讯作者:
W. Lu;H. Qin
中科院分区:
文献类型:
--
作者:
W. Lu;H. Qin
Letfbe a positive definite integral ternary quadratic form andits theta function. For any fixed square-free positive integertwith, we define. For the case whenand, Hurwitz proved thatis multiplicative and he gave its expression. Cooper and Lam proved four similar formulas and proposed a conjecture for some other cases. Using the results given in this paper, we can check the multiplicative property offor many cases. All cases in Cooper and Lam’s conjecture are included in ours.