Properties

Label 2-28e2-1.1-c3-0-6
Degree $2$
Conductor $784$
Sign $1$
Analytic cond. $46.2574$
Root an. cond. $6.80128$
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  − 3-s − 7·5-s − 26·9-s − 35·11-s − 66·13-s + 7·15-s − 59·17-s + 137·19-s + 7·23-s − 76·25-s + 53·27-s + 106·29-s + 75·31-s + 35·33-s + 11·37-s + 66·39-s + 498·41-s − 260·43-s + 182·45-s − 171·47-s + 59·51-s − 417·53-s + 245·55-s − 137·57-s − 17·59-s − 51·61-s + 462·65-s + ⋯
L(s)  = 1  − 0.192·3-s − 0.626·5-s − 0.962·9-s − 0.959·11-s − 1.40·13-s + 0.120·15-s − 0.841·17-s + 1.65·19-s + 0.0634·23-s − 0.607·25-s + 0.377·27-s + 0.678·29-s + 0.434·31-s + 0.184·33-s + 0.0488·37-s + 0.270·39-s + 1.89·41-s − 0.922·43-s + 0.602·45-s − 0.530·47-s + 0.161·51-s − 1.08·53-s + 0.600·55-s − 0.318·57-s − 0.0375·59-s − 0.107·61-s + 0.881·65-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(784\)    =    \(2^{4} \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(46.2574\)
Root analytic conductor: \(6.80128\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 784,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(0.8119021882\)
\(L(\frac12)\) \(\approx\) \(0.8119021882\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 \)
good3 \( 1 + T + p^{3} T^{2} \)
5 \( 1 + 7 T + p^{3} T^{2} \)
11 \( 1 + 35 T + p^{3} T^{2} \)
13 \( 1 + 66 T + p^{3} T^{2} \)
17 \( 1 + 59 T + p^{3} T^{2} \)
19 \( 1 - 137 T + p^{3} T^{2} \)
23 \( 1 - 7 T + p^{3} T^{2} \)
29 \( 1 - 106 T + p^{3} T^{2} \)
31 \( 1 - 75 T + p^{3} T^{2} \)
37 \( 1 - 11 T + p^{3} T^{2} \)
41 \( 1 - 498 T + p^{3} T^{2} \)
43 \( 1 + 260 T + p^{3} T^{2} \)
47 \( 1 + 171 T + p^{3} T^{2} \)
53 \( 1 + 417 T + p^{3} T^{2} \)
59 \( 1 + 17 T + p^{3} T^{2} \)
61 \( 1 + 51 T + p^{3} T^{2} \)
67 \( 1 + 439 T + p^{3} T^{2} \)
71 \( 1 - 784 T + p^{3} T^{2} \)
73 \( 1 + 295 T + p^{3} T^{2} \)
79 \( 1 - 495 T + p^{3} T^{2} \)
83 \( 1 - 932 T + p^{3} T^{2} \)
89 \( 1 - 873 T + p^{3} T^{2} \)
97 \( 1 - 290 T + p^{3} T^{2} \)
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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

−9.890807752383550103525542908105, −9.100844916939944434208265611783, −7.944491169504093428405659828483, −7.57054450107503179303590282682, −6.39319440952847158196571616336, −5.29916290740414099181049918632, −4.66380340167695564945054129483, −3.23699757063132437972640999871, −2.39507779295500742235830226430, −0.48247720709813489244568734978, 0.48247720709813489244568734978, 2.39507779295500742235830226430, 3.23699757063132437972640999871, 4.66380340167695564945054129483, 5.29916290740414099181049918632, 6.39319440952847158196571616336, 7.57054450107503179303590282682, 7.944491169504093428405659828483, 9.100844916939944434208265611783, 9.890807752383550103525542908105

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