Properties

Label 2-69-1.1-c7-0-23
Degree $2$
Conductor $69$
Sign $-1$
Analytic cond. $21.5545$
Root an. cond. $4.64268$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 10.6·2-s + 27·3-s − 15.6·4-s + 100.·5-s + 286.·6-s − 1.21e3·7-s − 1.52e3·8-s + 729·9-s + 1.06e3·10-s − 5.14e3·11-s − 421.·12-s − 4.33e3·13-s − 1.28e4·14-s + 2.70e3·15-s − 1.41e4·16-s + 2.80e4·17-s + 7.72e3·18-s − 2.47e4·19-s − 1.56e3·20-s − 3.28e4·21-s − 5.45e4·22-s − 1.21e4·23-s − 4.11e4·24-s − 6.80e4·25-s − 4.59e4·26-s + 1.96e4·27-s + 1.89e4·28-s + ⋯
L(s)  = 1  + 0.937·2-s + 0.577·3-s − 0.122·4-s + 0.358·5-s + 0.540·6-s − 1.34·7-s − 1.05·8-s + 0.333·9-s + 0.335·10-s − 1.16·11-s − 0.0704·12-s − 0.547·13-s − 1.25·14-s + 0.206·15-s − 0.863·16-s + 1.38·17-s + 0.312·18-s − 0.828·19-s − 0.0437·20-s − 0.773·21-s − 1.09·22-s − 0.208·23-s − 0.606·24-s − 0.871·25-s − 0.512·26-s + 0.192·27-s + 0.163·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 69 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 69 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(69\)    =    \(3 \cdot 23\)
Sign: $-1$
Analytic conductor: \(21.5545\)
Root analytic conductor: \(4.64268\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 69,\ (\ :7/2),\ -1)\)

Particular Values

\(L(4)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 - 27T \)
23 \( 1 + 1.21e4T \)
good2 \( 1 - 10.6T + 128T^{2} \)
5 \( 1 - 100.T + 7.81e4T^{2} \)
7 \( 1 + 1.21e3T + 8.23e5T^{2} \)
11 \( 1 + 5.14e3T + 1.94e7T^{2} \)
13 \( 1 + 4.33e3T + 6.27e7T^{2} \)
17 \( 1 - 2.80e4T + 4.10e8T^{2} \)
19 \( 1 + 2.47e4T + 8.93e8T^{2} \)
29 \( 1 - 3.98e4T + 1.72e10T^{2} \)
31 \( 1 + 7.56e3T + 2.75e10T^{2} \)
37 \( 1 - 2.52e4T + 9.49e10T^{2} \)
41 \( 1 - 4.92e5T + 1.94e11T^{2} \)
43 \( 1 + 1.01e6T + 2.71e11T^{2} \)
47 \( 1 + 7.91e5T + 5.06e11T^{2} \)
53 \( 1 - 1.33e6T + 1.17e12T^{2} \)
59 \( 1 + 6.21e5T + 2.48e12T^{2} \)
61 \( 1 + 2.33e6T + 3.14e12T^{2} \)
67 \( 1 - 1.54e6T + 6.06e12T^{2} \)
71 \( 1 - 2.85e6T + 9.09e12T^{2} \)
73 \( 1 - 3.85e6T + 1.10e13T^{2} \)
79 \( 1 - 3.15e6T + 1.92e13T^{2} \)
83 \( 1 + 3.03e6T + 2.71e13T^{2} \)
89 \( 1 - 6.07e6T + 4.42e13T^{2} \)
97 \( 1 - 1.02e7T + 8.07e13T^{2} \)
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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

−12.97696320131642341747417746333, −12.20885831933307069761754400589, −10.18398998923193257786350314476, −9.468990238784989801643720096397, −7.994298333050552112460109163002, −6.37899551487593732994131802439, −5.20716439568486487789335616429, −3.63718078557932910482970252457, −2.60732269644847474723727868432, 0, 2.60732269644847474723727868432, 3.63718078557932910482970252457, 5.20716439568486487789335616429, 6.37899551487593732994131802439, 7.994298333050552112460109163002, 9.468990238784989801643720096397, 10.18398998923193257786350314476, 12.20885831933307069761754400589, 12.97696320131642341747417746333

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