Properties

Label 2-28e2-1.1-c1-0-3
Degree $2$
Conductor $784$
Sign $1$
Analytic cond. $6.26027$
Root an. cond. $2.50205$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2.82·3-s + 2.82·5-s + 5.00·9-s + 4·11-s − 2.82·13-s − 8.00·15-s − 5.65·17-s + 2.82·19-s + 3.00·25-s − 5.65·27-s + 2·29-s + 5.65·31-s − 11.3·33-s + 10·37-s + 8.00·39-s + 5.65·41-s + 4·43-s + 14.1·45-s − 5.65·47-s + 16.0·51-s + 6·53-s + 11.3·55-s − 8.00·57-s + 2.82·59-s + 14.1·61-s − 8.00·65-s − 12·67-s + ⋯
L(s)  = 1  − 1.63·3-s + 1.26·5-s + 1.66·9-s + 1.20·11-s − 0.784·13-s − 2.06·15-s − 1.37·17-s + 0.648·19-s + 0.600·25-s − 1.08·27-s + 0.371·29-s + 1.01·31-s − 1.96·33-s + 1.64·37-s + 1.28·39-s + 0.883·41-s + 0.609·43-s + 2.10·45-s − 0.825·47-s + 2.24·51-s + 0.824·53-s + 1.52·55-s − 1.05·57-s + 0.368·59-s + 1.81·61-s − 0.992·65-s − 1.46·67-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(784\)    =    \(2^{4} \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(6.26027\)
Root analytic conductor: \(2.50205\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 784,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.143122167\)
\(L(\frac12)\) \(\approx\) \(1.143122167\)
\(L(\frac{3}{2})\) 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 \( 1 + 2.82T + 3T^{2} \)
5 \( 1 - 2.82T + 5T^{2} \)
11 \( 1 - 4T + 11T^{2} \)
13 \( 1 + 2.82T + 13T^{2} \)
17 \( 1 + 5.65T + 17T^{2} \)
19 \( 1 - 2.82T + 19T^{2} \)
23 \( 1 + 23T^{2} \)
29 \( 1 - 2T + 29T^{2} \)
31 \( 1 - 5.65T + 31T^{2} \)
37 \( 1 - 10T + 37T^{2} \)
41 \( 1 - 5.65T + 41T^{2} \)
43 \( 1 - 4T + 43T^{2} \)
47 \( 1 + 5.65T + 47T^{2} \)
53 \( 1 - 6T + 53T^{2} \)
59 \( 1 - 2.82T + 59T^{2} \)
61 \( 1 - 14.1T + 61T^{2} \)
67 \( 1 + 12T + 67T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 + 73T^{2} \)
79 \( 1 + 8T + 79T^{2} \)
83 \( 1 - 14.1T + 83T^{2} \)
89 \( 1 + 89T^{2} \)
97 \( 1 - 5.65T + 97T^{2} \)
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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

−10.23507420689339436190875550945, −9.714211439987077746275688683316, −8.893897705432050623915662987054, −7.32970383997053312115234417078, −6.41351849838639183347756969123, −6.07146340232479521253817627894, −5.04869630676600092966456186248, −4.28676224987771675110877287235, −2.35387932585599464505735885145, −0.999351453326497234930672369111, 0.999351453326497234930672369111, 2.35387932585599464505735885145, 4.28676224987771675110877287235, 5.04869630676600092966456186248, 6.07146340232479521253817627894, 6.41351849838639183347756969123, 7.32970383997053312115234417078, 8.893897705432050623915662987054, 9.714211439987077746275688683316, 10.23507420689339436190875550945

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