Properties

Label 2-20-1.1-c9-0-2
Degree $2$
Conductor $20$
Sign $-1$
Analytic cond. $10.3007$
Root an. cond. $3.20947$
Motivic weight $9$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 48·3-s + 625·5-s − 532·7-s − 1.73e4·9-s − 3.31e4·11-s − 9.96e4·13-s − 3.00e4·15-s − 4.43e5·17-s − 3.57e5·19-s + 2.55e4·21-s − 1.42e5·23-s + 3.90e5·25-s + 1.77e6·27-s + 1.52e6·29-s + 7.32e6·31-s + 1.59e6·33-s − 3.32e5·35-s − 2.66e6·37-s + 4.78e6·39-s − 7.93e6·41-s − 2.11e7·43-s − 1.08e7·45-s + 1.60e7·47-s − 4.00e7·49-s + 2.12e7·51-s − 8.78e7·53-s − 2.07e7·55-s + ⋯
L(s)  = 1  − 0.342·3-s + 0.447·5-s − 0.0837·7-s − 0.882·9-s − 0.683·11-s − 0.967·13-s − 0.153·15-s − 1.28·17-s − 0.628·19-s + 0.0286·21-s − 0.106·23-s + 1/5·25-s + 0.644·27-s + 0.401·29-s + 1.42·31-s + 0.233·33-s − 0.0374·35-s − 0.233·37-s + 0.331·39-s − 0.438·41-s − 0.944·43-s − 0.394·45-s + 0.480·47-s − 0.992·49-s + 0.440·51-s − 1.52·53-s − 0.305·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 20 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(10-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 20 ^{s/2} \, \Gamma_{\C}(s+9/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(20\)    =    \(2^{2} \cdot 5\)
Sign: $-1$
Analytic conductor: \(10.3007\)
Root analytic conductor: \(3.20947\)
Motivic weight: \(9\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 20,\ (\ :9/2),\ -1)\)

Particular Values

\(L(5)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{11}{2})\) 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 \( 1 - p^{4} T \)
good3 \( 1 + 16 p T + p^{9} T^{2} \)
7 \( 1 + 76 p T + p^{9} T^{2} \)
11 \( 1 + 33180 T + p^{9} T^{2} \)
13 \( 1 + 99682 T + p^{9} T^{2} \)
17 \( 1 + 443454 T + p^{9} T^{2} \)
19 \( 1 + 357244 T + p^{9} T^{2} \)
23 \( 1 + 142956 T + p^{9} T^{2} \)
29 \( 1 - 1527966 T + p^{9} T^{2} \)
31 \( 1 - 7323416 T + p^{9} T^{2} \)
37 \( 1 + 2666842 T + p^{9} T^{2} \)
41 \( 1 + 7939014 T + p^{9} T^{2} \)
43 \( 1 + 21174520 T + p^{9} T^{2} \)
47 \( 1 - 16059636 T + p^{9} T^{2} \)
53 \( 1 + 87822234 T + p^{9} T^{2} \)
59 \( 1 - 120625212 T + p^{9} T^{2} \)
61 \( 1 - 93576542 T + p^{9} T^{2} \)
67 \( 1 - 193621688 T + p^{9} T^{2} \)
71 \( 1 - 417763488 T + p^{9} T^{2} \)
73 \( 1 + 450372742 T + p^{9} T^{2} \)
79 \( 1 + 91425472 T + p^{9} T^{2} \)
83 \( 1 + 652637376 T + p^{9} T^{2} \)
89 \( 1 + 170059206 T + p^{9} T^{2} \)
97 \( 1 + 10947022 T + p^{9} T^{2} \)
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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

−15.57467539063652986155627052475, −14.20200004519500311651618825252, −12.88545108163646681285560481008, −11.43343846615442243142119984241, −10.07627563711238646416010618526, −8.449577452536480438659309308286, −6.52511132950437973555583678943, −4.96734204303351241574101116149, −2.50331591073007572121048679537, 0, 2.50331591073007572121048679537, 4.96734204303351241574101116149, 6.52511132950437973555583678943, 8.449577452536480438659309308286, 10.07627563711238646416010618526, 11.43343846615442243142119984241, 12.88545108163646681285560481008, 14.20200004519500311651618825252, 15.57467539063652986155627052475

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