Properties

Label 2-20e2-1.1-c3-0-6
Degree $2$
Conductor $400$
Sign $1$
Analytic cond. $23.6007$
Root an. cond. $4.85806$
Motivic weight $3$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 4·3-s + 24·7-s − 11·9-s + 44·11-s − 22·13-s − 50·17-s − 44·19-s − 96·21-s − 56·23-s + 152·27-s + 198·29-s + 160·31-s − 176·33-s + 162·37-s + 88·39-s − 198·41-s + 52·43-s + 528·47-s + 233·49-s + 200·51-s + 242·53-s + 176·57-s + 668·59-s + 550·61-s − 264·63-s + 188·67-s + 224·69-s + ⋯
L(s)  = 1  − 0.769·3-s + 1.29·7-s − 0.407·9-s + 1.20·11-s − 0.469·13-s − 0.713·17-s − 0.531·19-s − 0.997·21-s − 0.507·23-s + 1.08·27-s + 1.26·29-s + 0.926·31-s − 0.928·33-s + 0.719·37-s + 0.361·39-s − 0.754·41-s + 0.184·43-s + 1.63·47-s + 0.679·49-s + 0.549·51-s + 0.627·53-s + 0.408·57-s + 1.47·59-s + 1.15·61-s − 0.527·63-s + 0.342·67-s + 0.390·69-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(400\)    =    \(2^{4} \cdot 5^{2}\)
Sign: $1$
Analytic conductor: \(23.6007\)
Root analytic conductor: \(4.85806\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 400,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.593793040\)
\(L(\frac12)\) \(\approx\) \(1.593793040\)
\(L(\frac{5}{2})\) 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 \( 1 + 4 T + p^{3} T^{2} \)
7 \( 1 - 24 T + p^{3} T^{2} \)
11 \( 1 - 4 p T + p^{3} T^{2} \)
13 \( 1 + 22 T + p^{3} T^{2} \)
17 \( 1 + 50 T + p^{3} T^{2} \)
19 \( 1 + 44 T + p^{3} T^{2} \)
23 \( 1 + 56 T + p^{3} T^{2} \)
29 \( 1 - 198 T + p^{3} T^{2} \)
31 \( 1 - 160 T + p^{3} T^{2} \)
37 \( 1 - 162 T + p^{3} T^{2} \)
41 \( 1 + 198 T + p^{3} T^{2} \)
43 \( 1 - 52 T + p^{3} T^{2} \)
47 \( 1 - 528 T + p^{3} T^{2} \)
53 \( 1 - 242 T + p^{3} T^{2} \)
59 \( 1 - 668 T + p^{3} T^{2} \)
61 \( 1 - 550 T + p^{3} T^{2} \)
67 \( 1 - 188 T + p^{3} T^{2} \)
71 \( 1 + 728 T + p^{3} T^{2} \)
73 \( 1 + 154 T + p^{3} T^{2} \)
79 \( 1 - 656 T + p^{3} T^{2} \)
83 \( 1 - 236 T + p^{3} T^{2} \)
89 \( 1 - 714 T + p^{3} T^{2} \)
97 \( 1 - 478 T + p^{3} T^{2} \)
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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

−11.02917144489858541020404611391, −10.15566685295665828735539079219, −8.863089382957613941778013360633, −8.212889177451547761589934042420, −6.92223707688319509431382363173, −6.07418720168457991144825688064, −4.96738246788278403594070779344, −4.16952087803522704376667180287, −2.32718986612958753573484937413, −0.882413732014556012127178058365, 0.882413732014556012127178058365, 2.32718986612958753573484937413, 4.16952087803522704376667180287, 4.96738246788278403594070779344, 6.07418720168457991144825688064, 6.92223707688319509431382363173, 8.212889177451547761589934042420, 8.863089382957613941778013360633, 10.15566685295665828735539079219, 11.02917144489858541020404611391

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