Properties

Label 2-680-1.1-c1-0-4
Degree $2$
Conductor $680$
Sign $1$
Analytic cond. $5.42982$
Root an. cond. $2.33019$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s + 5-s + 2·7-s − 2·9-s + 4·11-s − 13-s − 15-s + 17-s − 19-s − 2·21-s + 6·23-s + 25-s + 5·27-s − 5·29-s + 3·31-s − 4·33-s + 2·35-s + 4·37-s + 39-s + 6·41-s + 10·43-s − 2·45-s + 5·47-s − 3·49-s − 51-s − 3·53-s + 4·55-s + ⋯
L(s)  = 1  − 0.577·3-s + 0.447·5-s + 0.755·7-s − 2/3·9-s + 1.20·11-s − 0.277·13-s − 0.258·15-s + 0.242·17-s − 0.229·19-s − 0.436·21-s + 1.25·23-s + 1/5·25-s + 0.962·27-s − 0.928·29-s + 0.538·31-s − 0.696·33-s + 0.338·35-s + 0.657·37-s + 0.160·39-s + 0.937·41-s + 1.52·43-s − 0.298·45-s + 0.729·47-s − 3/7·49-s − 0.140·51-s − 0.412·53-s + 0.539·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(680\)    =    \(2^{3} \cdot 5 \cdot 17\)
Sign: $1$
Analytic conductor: \(5.42982\)
Root analytic conductor: \(2.33019\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 680,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.466377890\)
\(L(\frac12)\) \(\approx\) \(1.466377890\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$Isogeny Class over $\mathbf{F}_p$
bad2 \( 1 \)
5 \( 1 - T \)
17 \( 1 - T \)
good3 \( 1 + T + p T^{2} \) 1.3.b
7 \( 1 - 2 T + p T^{2} \) 1.7.ac
11 \( 1 - 4 T + p T^{2} \) 1.11.ae
13 \( 1 + T + p T^{2} \) 1.13.b
19 \( 1 + T + p T^{2} \) 1.19.b
23 \( 1 - 6 T + p T^{2} \) 1.23.ag
29 \( 1 + 5 T + p T^{2} \) 1.29.f
31 \( 1 - 3 T + p T^{2} \) 1.31.ad
37 \( 1 - 4 T + p T^{2} \) 1.37.ae
41 \( 1 - 6 T + p T^{2} \) 1.41.ag
43 \( 1 - 10 T + p T^{2} \) 1.43.ak
47 \( 1 - 5 T + p T^{2} \) 1.47.af
53 \( 1 + 3 T + p T^{2} \) 1.53.d
59 \( 1 - 3 T + p T^{2} \) 1.59.ad
61 \( 1 - 5 T + p T^{2} \) 1.61.af
67 \( 1 + 6 T + p T^{2} \) 1.67.g
71 \( 1 + 9 T + p T^{2} \) 1.71.j
73 \( 1 - 13 T + p T^{2} \) 1.73.an
79 \( 1 - 8 T + p T^{2} \) 1.79.ai
83 \( 1 + 8 T + p T^{2} \) 1.83.i
89 \( 1 + T + p T^{2} \) 1.89.b
97 \( 1 + T + p T^{2} \) 1.97.b
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−10.76792248171826519581251782244, −9.502292028355170162692614931059, −8.922867142689585025777010776290, −7.87213974837717368652492799178, −6.81754514899596852986711667831, −5.94662038287314899491975310750, −5.14884523236919836804552962057, −4.11049804585327936028225219196, −2.63271151351926318644565002461, −1.15493306207939279826165810518, 1.15493306207939279826165810518, 2.63271151351926318644565002461, 4.11049804585327936028225219196, 5.14884523236919836804552962057, 5.94662038287314899491975310750, 6.81754514899596852986711667831, 7.87213974837717368652492799178, 8.922867142689585025777010776290, 9.502292028355170162692614931059, 10.76792248171826519581251782244

Graph of the $Z$-function along the critical line