Explicit Bounds for Residues of Dedekind Zeta Functions, Values of L-Functions at s=1, and Relative Class Numbers☆
Explicit Bounds for Residues of Dedekind Zeta Functions, Values of L-Functions at s=1, and Relative Class Numbers☆
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Dedekind Zeta 函数留数的显式界限、s=1 处 L 函数的值以及相对类数☆
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发表时间:
2000
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通讯作者:
S. Louboutin
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作者:
S. Louboutin
We give explicit upper bounds for residues at s=1 of Dedekind zeta functions of number fields, for |L(1, χ)| for nontrivial primitive characters χ on ray class groups, and for relative class numbers of CM fields. We also give explicit lower bounds for relative class numbers of CM fields (which do not contain any imaginary quadratic subfield). Most of these bounds stem from a useful lemma which enables us to easily obtain neat bounds.