Properties

Label 2-1568-1.1-c1-0-15
Degree $2$
Conductor $1568$
Sign $1$
Analytic cond. $12.5205$
Root an. cond. $3.53843$
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  + 2·3-s + 9-s − 4·11-s + 4·13-s + 2·17-s + 6·19-s + 8·23-s − 5·25-s − 4·27-s + 2·29-s + 4·31-s − 8·33-s + 10·37-s + 8·39-s + 10·41-s + 4·43-s − 4·47-s + 4·51-s − 2·53-s + 12·57-s − 10·59-s + 8·61-s − 8·67-s + 16·69-s + 6·73-s − 10·75-s − 16·79-s + ⋯
L(s)  = 1  + 1.15·3-s + 1/3·9-s − 1.20·11-s + 1.10·13-s + 0.485·17-s + 1.37·19-s + 1.66·23-s − 25-s − 0.769·27-s + 0.371·29-s + 0.718·31-s − 1.39·33-s + 1.64·37-s + 1.28·39-s + 1.56·41-s + 0.609·43-s − 0.583·47-s + 0.560·51-s − 0.274·53-s + 1.58·57-s − 1.30·59-s + 1.02·61-s − 0.977·67-s + 1.92·69-s + 0.702·73-s − 1.15·75-s − 1.80·79-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1568 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1568 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1568\)    =    \(2^{5} \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(12.5205\)
Root analytic conductor: \(3.53843\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1568,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.596644279\)
\(L(\frac12)\) \(\approx\) \(2.596644279\)
\(L(\frac{3}{2})\) 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 \( 1 \)
7 \( 1 \)
good3 \( 1 - 2 T + p T^{2} \) 1.3.ac
5 \( 1 + p T^{2} \) 1.5.a
11 \( 1 + 4 T + p T^{2} \) 1.11.e
13 \( 1 - 4 T + p T^{2} \) 1.13.ae
17 \( 1 - 2 T + p T^{2} \) 1.17.ac
19 \( 1 - 6 T + p T^{2} \) 1.19.ag
23 \( 1 - 8 T + p T^{2} \) 1.23.ai
29 \( 1 - 2 T + p T^{2} \) 1.29.ac
31 \( 1 - 4 T + p T^{2} \) 1.31.ae
37 \( 1 - 10 T + p T^{2} \) 1.37.ak
41 \( 1 - 10 T + p T^{2} \) 1.41.ak
43 \( 1 - 4 T + p T^{2} \) 1.43.ae
47 \( 1 + 4 T + p T^{2} \) 1.47.e
53 \( 1 + 2 T + p T^{2} \) 1.53.c
59 \( 1 + 10 T + p T^{2} \) 1.59.k
61 \( 1 - 8 T + p T^{2} \) 1.61.ai
67 \( 1 + 8 T + p T^{2} \) 1.67.i
71 \( 1 + p T^{2} \) 1.71.a
73 \( 1 - 6 T + p T^{2} \) 1.73.ag
79 \( 1 + 16 T + p T^{2} \) 1.79.q
83 \( 1 + 2 T + p T^{2} \) 1.83.c
89 \( 1 + 18 T + p T^{2} \) 1.89.s
97 \( 1 - 2 T + p T^{2} \) 1.97.ac
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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

−9.373857617588295367961483073830, −8.589272005710336492190097424760, −7.84325882583011970892071619935, −7.43617998805416894494930631088, −6.10276118363026386768152091852, −5.35174774645365978518414756780, −4.21868092620292662247305328011, −3.12022467334904801892948222253, −2.67787006845321594312840497948, −1.16036401648900510175062615275, 1.16036401648900510175062615275, 2.67787006845321594312840497948, 3.12022467334904801892948222253, 4.21868092620292662247305328011, 5.35174774645365978518414756780, 6.10276118363026386768152091852, 7.43617998805416894494930631088, 7.84325882583011970892071619935, 8.589272005710336492190097424760, 9.373857617588295367961483073830

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