Stark's conjecture for L-functions with first-order zeroes at s = 0
Stark's conjecture for L-functions with first-order zeroes at s = 0
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Stark 对 s = 0 处具有一阶零的 L 函数的猜想
DOI:
10.1016/0001-8708(83)90006-3
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发表时间:
1983
期刊:
影响因子:
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通讯作者:
T. Chinburg
中科院分区:
文献类型:
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作者:
T. Chinburg
Let K be a finite Galois extension of Q with group G= Gal (K/Q). Let V be an irreducible complex linear representation of G, and let L (s, V) be the Artin L-function of V. Let r (V) be the order of vanishing of L (s, v> at s= 0. This paper concerns a variant of a conjecture of H. Stark ([17-201) on L’(0, V) when r (V)= 1 and V has dimension 1 or 2. Let E, be the group of units of K. Define Y, to be the free abelian group with basis the set S, of infinite places of K. Define X, to be the kernel of the homomorphism 4: Y,+ Z for which 4 (v)= 1 if u ES,. Let]] I],. be the normalized absolute value of K at the place G’. Let G act on S, X by defining 11 d/Igt,= 11 all,, for a EK and v ES,. The Dirichlet unit theorem shows that the homomorphism il: C@ E,+ Cc OX, induced by n (e)= C,, ESo log]] e] ll, v for e EE, is a G-isomorphism. The first-order zero case of Stark’s conjecture is of particular interest because one may conjecturally (and sometimes demonstrably) express I (e) for particular units e EE, in terms of derivatives L’(0, V) of L (s, V) at s= 0. We now develop a notation to state a conjecture of this kind.Let S be finite set of places of Q containing the infinite place. Let V denote the pair (V, S). Two pairs V=(V, 5’) and V’=(V’, S’) will be identified if S= S’and Y and Y’are isomorphic. Define L (s, V)= npes L,(s) where LJs)= det (1-Frob (p) p-’I V’p)-I is the Euler factor at p of L (s, P’). The character of V will be denoted xv. Define prv= J&: ci~,-(g) g and L,(s)= L (s, V) prv. Let L’(s, V) be the derivative of L (s, V), and let L;(s)= L’(s, V) prv.
DOI:
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发表时间:
2007
期刊:
影响因子:
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作者:
Ikehata;M and Ohe;T;松本久義
通讯作者:
松本久義