Properties

Label 2-40e2-1.1-c1-0-19
Degree $2$
Conductor $1600$
Sign $1$
Analytic cond. $12.7760$
Root an. cond. $3.57436$
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  + 3·3-s + 2·7-s + 6·9-s − 11-s − 4·13-s + 5·17-s − 19-s + 6·21-s − 2·23-s + 9·27-s + 8·29-s + 10·31-s − 3·33-s + 6·37-s − 12·39-s − 3·41-s − 4·43-s + 4·47-s − 3·49-s + 15·51-s − 6·53-s − 3·57-s − 8·59-s − 10·61-s + 12·63-s + 67-s − 6·69-s + ⋯
L(s)  = 1  + 1.73·3-s + 0.755·7-s + 2·9-s − 0.301·11-s − 1.10·13-s + 1.21·17-s − 0.229·19-s + 1.30·21-s − 0.417·23-s + 1.73·27-s + 1.48·29-s + 1.79·31-s − 0.522·33-s + 0.986·37-s − 1.92·39-s − 0.468·41-s − 0.609·43-s + 0.583·47-s − 3/7·49-s + 2.10·51-s − 0.824·53-s − 0.397·57-s − 1.04·59-s − 1.28·61-s + 1.51·63-s + 0.122·67-s − 0.722·69-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1600 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1600 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1600\)    =    \(2^{6} \cdot 5^{2}\)
Sign: $1$
Analytic conductor: \(12.7760\)
Root analytic conductor: \(3.57436\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1600,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(3.430642832\)
\(L(\frac12)\) \(\approx\) \(3.430642832\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 \)
good3 \( 1 - p T + p T^{2} \)
7 \( 1 - 2 T + p T^{2} \)
11 \( 1 + T + p T^{2} \)
13 \( 1 + 4 T + p T^{2} \)
17 \( 1 - 5 T + p T^{2} \)
19 \( 1 + T + p T^{2} \)
23 \( 1 + 2 T + p T^{2} \)
29 \( 1 - 8 T + p T^{2} \)
31 \( 1 - 10 T + p T^{2} \)
37 \( 1 - 6 T + p T^{2} \)
41 \( 1 + 3 T + p T^{2} \)
43 \( 1 + 4 T + p T^{2} \)
47 \( 1 - 4 T + p T^{2} \)
53 \( 1 + 6 T + p T^{2} \)
59 \( 1 + 8 T + p T^{2} \)
61 \( 1 + 10 T + p T^{2} \)
67 \( 1 - T + p T^{2} \)
71 \( 1 + 12 T + p T^{2} \)
73 \( 1 - 3 T + p T^{2} \)
79 \( 1 - 6 T + p T^{2} \)
83 \( 1 - 13 T + p T^{2} \)
89 \( 1 + 9 T + p T^{2} \)
97 \( 1 + 14 T + p T^{2} \)
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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

−9.424370472690625761595489741203, −8.343245514805496720189668551299, −8.027465822013125798465883361101, −7.41789314520393433372850249944, −6.33729948343741058630433822545, −4.95289758136762834306757704416, −4.34834679787386123609196181861, −3.11807506367000257639310104759, −2.53341296305098169334469613264, −1.39439997917095387252211681534, 1.39439997917095387252211681534, 2.53341296305098169334469613264, 3.11807506367000257639310104759, 4.34834679787386123609196181861, 4.95289758136762834306757704416, 6.33729948343741058630433822545, 7.41789314520393433372850249944, 8.027465822013125798465883361101, 8.343245514805496720189668551299, 9.424370472690625761595489741203

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