Properties

Label 2-28e2-1.1-c3-0-18
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  + 4·3-s − 6·5-s − 11·9-s + 12·11-s + 82·13-s − 24·15-s + 30·17-s + 68·19-s − 216·23-s − 89·25-s − 152·27-s + 246·29-s − 112·31-s + 48·33-s + 110·37-s + 328·39-s + 246·41-s + 172·43-s + 66·45-s + 192·47-s + 120·51-s + 558·53-s − 72·55-s + 272·57-s + 540·59-s − 110·61-s − 492·65-s + ⋯
L(s)  = 1  + 0.769·3-s − 0.536·5-s − 0.407·9-s + 0.328·11-s + 1.74·13-s − 0.413·15-s + 0.428·17-s + 0.821·19-s − 1.95·23-s − 0.711·25-s − 1.08·27-s + 1.57·29-s − 0.648·31-s + 0.253·33-s + 0.488·37-s + 1.34·39-s + 0.937·41-s + 0.609·43-s + 0.218·45-s + 0.595·47-s + 0.329·51-s + 1.44·53-s − 0.176·55-s + 0.632·57-s + 1.19·59-s − 0.230·61-s − 0.938·65-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

\(L(2)\) \(\approx\) \(2.520565544\)
\(L(\frac12)\) \(\approx\) \(2.520565544\)
\(L(\frac{5}{2})\) 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 \( 1 - 4 T + p^{3} T^{2} \)
5 \( 1 + 6 T + p^{3} T^{2} \)
11 \( 1 - 12 T + p^{3} T^{2} \)
13 \( 1 - 82 T + p^{3} T^{2} \)
17 \( 1 - 30 T + p^{3} T^{2} \)
19 \( 1 - 68 T + p^{3} T^{2} \)
23 \( 1 + 216 T + p^{3} T^{2} \)
29 \( 1 - 246 T + p^{3} T^{2} \)
31 \( 1 + 112 T + p^{3} T^{2} \)
37 \( 1 - 110 T + p^{3} T^{2} \)
41 \( 1 - 6 p T + p^{3} T^{2} \)
43 \( 1 - 4 p T + p^{3} T^{2} \)
47 \( 1 - 192 T + p^{3} T^{2} \)
53 \( 1 - 558 T + p^{3} T^{2} \)
59 \( 1 - 540 T + p^{3} T^{2} \)
61 \( 1 + 110 T + p^{3} T^{2} \)
67 \( 1 + 140 T + p^{3} T^{2} \)
71 \( 1 - 840 T + p^{3} T^{2} \)
73 \( 1 - 550 T + p^{3} T^{2} \)
79 \( 1 - 208 T + p^{3} T^{2} \)
83 \( 1 - 516 T + p^{3} T^{2} \)
89 \( 1 - 1398 T + p^{3} T^{2} \)
97 \( 1 + 1586 T + p^{3} T^{2} \)
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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

−9.769034352446378686782239714300, −8.903191567931423043888874654542, −8.184564022024379779340210319988, −7.65921554575016039425677651638, −6.32377859642779558478157331807, −5.61251072491505662703388843050, −4.01316844088732895775534332057, −3.56354715961861568962582775665, −2.30122643760448740681340097053, −0.881032388084310648416644888712, 0.881032388084310648416644888712, 2.30122643760448740681340097053, 3.56354715961861568962582775665, 4.01316844088732895775534332057, 5.61251072491505662703388843050, 6.32377859642779558478157331807, 7.65921554575016039425677651638, 8.184564022024379779340210319988, 8.903191567931423043888874654542, 9.769034352446378686782239714300

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