Properties

Label 2-20e2-5.4-c3-0-19
Degree $2$
Conductor $400$
Sign $0.447 + 0.894i$
Analytic cond. $23.6007$
Root an. cond. $4.85806$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 8i·3-s − 4i·7-s − 37·9-s − 12·11-s − 58i·13-s − 66i·17-s − 100·19-s + 32·21-s − 132i·23-s − 80i·27-s + 90·29-s − 152·31-s − 96i·33-s + 34i·37-s + 464·39-s + ⋯
L(s)  = 1  + 1.53i·3-s − 0.215i·7-s − 1.37·9-s − 0.328·11-s − 1.23i·13-s − 0.941i·17-s − 1.20·19-s + 0.332·21-s − 1.19i·23-s − 0.570i·27-s + 0.576·29-s − 0.880·31-s − 0.506i·33-s + 0.151i·37-s + 1.90·39-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.447 + 0.894i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (0.447 + 0.894i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(400\)    =    \(2^{4} \cdot 5^{2}\)
Sign: $0.447 + 0.894i$
Analytic conductor: \(23.6007\)
Root analytic conductor: \(4.85806\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{400} (49, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 400,\ (\ :3/2),\ 0.447 + 0.894i)\)

Particular Values

\(L(2)\) \(\approx\) \(0.7892828498\)
\(L(\frac12)\) \(\approx\) \(0.7892828498\)
\(L(\frac{5}{2})\) 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 \( 1 - 8iT - 27T^{2} \)
7 \( 1 + 4iT - 343T^{2} \)
11 \( 1 + 12T + 1.33e3T^{2} \)
13 \( 1 + 58iT - 2.19e3T^{2} \)
17 \( 1 + 66iT - 4.91e3T^{2} \)
19 \( 1 + 100T + 6.85e3T^{2} \)
23 \( 1 + 132iT - 1.21e4T^{2} \)
29 \( 1 - 90T + 2.43e4T^{2} \)
31 \( 1 + 152T + 2.97e4T^{2} \)
37 \( 1 - 34iT - 5.06e4T^{2} \)
41 \( 1 + 438T + 6.89e4T^{2} \)
43 \( 1 + 32iT - 7.95e4T^{2} \)
47 \( 1 + 204iT - 1.03e5T^{2} \)
53 \( 1 - 222iT - 1.48e5T^{2} \)
59 \( 1 - 420T + 2.05e5T^{2} \)
61 \( 1 - 902T + 2.26e5T^{2} \)
67 \( 1 + 1.02e3iT - 3.00e5T^{2} \)
71 \( 1 + 432T + 3.57e5T^{2} \)
73 \( 1 - 362iT - 3.89e5T^{2} \)
79 \( 1 + 160T + 4.93e5T^{2} \)
83 \( 1 + 72iT - 5.71e5T^{2} \)
89 \( 1 + 810T + 7.04e5T^{2} \)
97 \( 1 + 1.10e3iT - 9.12e5T^{2} \)
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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

−10.40742612228477583123339837037, −10.11215882525853187921306998321, −8.931889719329597217922339508713, −8.220958256286813827480688066395, −6.86957754128808352492833102484, −5.52432384743826982638099992003, −4.76787080715042475526701244230, −3.75213779564222301094101297170, −2.65077880984899148337869881597, −0.25853637319379430745198509969, 1.46989980773140512980886815240, 2.32184008131005847734259956559, 3.95786270760744858547981600387, 5.50510706507821248227493189054, 6.50933563664974416561802883032, 7.13531374402991349644883425910, 8.193648389541321052519521268420, 8.864491989105973579984721724205, 10.15791095402599830935992690217, 11.32126578633781093636372224421

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