Properties

Label 2-1680-1.1-c1-0-14
Degree $2$
Conductor $1680$
Sign $1$
Analytic cond. $13.4148$
Root an. cond. $3.66263$
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 + 7-s + 9-s + 2·13-s + 15-s + 2·17-s + 21-s + 25-s + 27-s + 6·29-s − 4·31-s + 35-s − 2·37-s + 2·39-s + 10·41-s − 4·43-s + 45-s + 49-s + 2·51-s + 2·53-s − 4·59-s + 6·61-s + 63-s + 2·65-s + 12·67-s − 12·71-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447·5-s + 0.377·7-s + 1/3·9-s + 0.554·13-s + 0.258·15-s + 0.485·17-s + 0.218·21-s + 1/5·25-s + 0.192·27-s + 1.11·29-s − 0.718·31-s + 0.169·35-s − 0.328·37-s + 0.320·39-s + 1.56·41-s − 0.609·43-s + 0.149·45-s + 1/7·49-s + 0.280·51-s + 0.274·53-s − 0.520·59-s + 0.768·61-s + 0.125·63-s + 0.248·65-s + 1.46·67-s − 1.42·71-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1680\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 7\)
Sign: $1$
Analytic conductor: \(13.4148\)
Root analytic conductor: \(3.66263\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1680,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.559128703\)
\(L(\frac12)\) \(\approx\) \(2.559128703\)
\(L(\frac{3}{2})\) 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 \( 1 \)
3 \( 1 - T \)
5 \( 1 - T \)
7 \( 1 - T \)
good11 \( 1 + p T^{2} \) 1.11.a
13 \( 1 - 2 T + p T^{2} \) 1.13.ac
17 \( 1 - 2 T + p T^{2} \) 1.17.ac
19 \( 1 + p T^{2} \) 1.19.a
23 \( 1 + p T^{2} \) 1.23.a
29 \( 1 - 6 T + p T^{2} \) 1.29.ag
31 \( 1 + 4 T + p T^{2} \) 1.31.e
37 \( 1 + 2 T + p T^{2} \) 1.37.c
41 \( 1 - 10 T + p T^{2} \) 1.41.ak
43 \( 1 + 4 T + p T^{2} \) 1.43.e
47 \( 1 + p T^{2} \) 1.47.a
53 \( 1 - 2 T + p T^{2} \) 1.53.ac
59 \( 1 + 4 T + p T^{2} \) 1.59.e
61 \( 1 - 6 T + p T^{2} \) 1.61.ag
67 \( 1 - 12 T + p T^{2} \) 1.67.am
71 \( 1 + 12 T + p T^{2} \) 1.71.m
73 \( 1 + 2 T + p T^{2} \) 1.73.c
79 \( 1 + p T^{2} \) 1.79.a
83 \( 1 + 4 T + p T^{2} \) 1.83.e
89 \( 1 - 10 T + p T^{2} \) 1.89.ak
97 \( 1 + 2 T + p T^{2} \) 1.97.c
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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

−9.272137463304519888721719771993, −8.583915667205168907938732808044, −7.88218804424170995712718546296, −7.03203260508625422741500199905, −6.12445278441503394177450128053, −5.26872389432656365187525030939, −4.29122686155678571933750083631, −3.32010977241104683139327018187, −2.30215882443364192027548996597, −1.19019368875510050700001453681, 1.19019368875510050700001453681, 2.30215882443364192027548996597, 3.32010977241104683139327018187, 4.29122686155678571933750083631, 5.26872389432656365187525030939, 6.12445278441503394177450128053, 7.03203260508625422741500199905, 7.88218804424170995712718546296, 8.583915667205168907938732808044, 9.272137463304519888721719771993

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