Properties

Label 2-20e2-1.1-c7-0-18
Degree $2$
Conductor $400$
Sign $1$
Analytic cond. $124.954$
Root an. cond. $11.1782$
Motivic weight $7$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 84·3-s − 456·7-s + 4.86e3·9-s + 2.52e3·11-s + 1.07e4·13-s + 1.11e4·17-s − 4.12e3·19-s + 3.83e4·21-s + 8.17e4·23-s − 2.25e5·27-s + 9.97e4·29-s + 4.04e4·31-s − 2.12e5·33-s + 4.19e5·37-s − 9.05e5·39-s + 1.41e5·41-s − 6.90e5·43-s − 6.82e5·47-s − 6.15e5·49-s − 9.36e5·51-s − 1.81e6·53-s + 3.46e5·57-s + 9.66e5·59-s + 1.88e6·61-s − 2.22e6·63-s + 2.96e6·67-s − 6.86e6·69-s + ⋯
L(s)  = 1  − 1.79·3-s − 0.502·7-s + 2.22·9-s + 0.571·11-s + 1.36·13-s + 0.550·17-s − 0.137·19-s + 0.902·21-s + 1.40·23-s − 2.20·27-s + 0.759·29-s + 0.244·31-s − 1.02·33-s + 1.36·37-s − 2.44·39-s + 0.320·41-s − 1.32·43-s − 0.958·47-s − 0.747·49-s − 0.988·51-s − 1.67·53-s + 0.247·57-s + 0.612·59-s + 1.06·61-s − 1.11·63-s + 1.20·67-s − 2.51·69-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(400\)    =    \(2^{4} \cdot 5^{2}\)
Sign: $1$
Analytic conductor: \(124.954\)
Root analytic conductor: \(11.1782\)
Motivic weight: \(7\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 400,\ (\ :7/2),\ 1)\)

Particular Values

\(L(4)\) \(\approx\) \(1.277071747\)
\(L(\frac12)\) \(\approx\) \(1.277071747\)
\(L(\frac{9}{2})\) 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 \( 1 + 28 p T + p^{7} T^{2} \)
7 \( 1 + 456 T + p^{7} T^{2} \)
11 \( 1 - 2524 T + p^{7} T^{2} \)
13 \( 1 - 10778 T + p^{7} T^{2} \)
17 \( 1 - 11150 T + p^{7} T^{2} \)
19 \( 1 + 4124 T + p^{7} T^{2} \)
23 \( 1 - 81704 T + p^{7} T^{2} \)
29 \( 1 - 99798 T + p^{7} T^{2} \)
31 \( 1 - 40480 T + p^{7} T^{2} \)
37 \( 1 - 419442 T + p^{7} T^{2} \)
41 \( 1 - 141402 T + p^{7} T^{2} \)
43 \( 1 + 690428 T + p^{7} T^{2} \)
47 \( 1 + 682032 T + p^{7} T^{2} \)
53 \( 1 + 1813118 T + p^{7} T^{2} \)
59 \( 1 - 966028 T + p^{7} T^{2} \)
61 \( 1 - 1887670 T + p^{7} T^{2} \)
67 \( 1 - 2965868 T + p^{7} T^{2} \)
71 \( 1 - 2548232 T + p^{7} T^{2} \)
73 \( 1 - 1680326 T + p^{7} T^{2} \)
79 \( 1 + 4038064 T + p^{7} T^{2} \)
83 \( 1 + 5385764 T + p^{7} T^{2} \)
89 \( 1 + 6473046 T + p^{7} T^{2} \)
97 \( 1 - 6065758 T + p^{7} T^{2} \)
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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

−10.26393268541008872472650262649, −9.473416962634956213910735342435, −8.196530631723605786342524747566, −6.76065230888507318881085890229, −6.39410610801494195288238919634, −5.44290996066810598066460142798, −4.48785841711463988509533844542, −3.33894766280170839128428813501, −1.36963623808592972456577269952, −0.65367313124880705666804663317, 0.65367313124880705666804663317, 1.36963623808592972456577269952, 3.33894766280170839128428813501, 4.48785841711463988509533844542, 5.44290996066810598066460142798, 6.39410610801494195288238919634, 6.76065230888507318881085890229, 8.196530631723605786342524747566, 9.473416962634956213910735342435, 10.26393268541008872472650262649

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