Properties

Label 2-7e2-1.1-c25-0-1
Degree $2$
Conductor $49$
Sign $1$
Analytic cond. $194.038$
Root an. cond. $13.9297$
Motivic weight $25$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 662.·2-s − 1.07e6·3-s − 3.31e7·4-s − 3.68e8·5-s + 7.15e8·6-s + 4.41e10·8-s + 3.18e11·9-s + 2.44e11·10-s − 8.55e12·11-s + 3.57e13·12-s + 6.10e13·13-s + 3.98e14·15-s + 1.08e15·16-s − 1.62e15·17-s − 2.11e14·18-s + 5.88e15·19-s + 1.22e16·20-s + 5.67e15·22-s − 7.30e15·23-s − 4.76e16·24-s − 1.62e17·25-s − 4.04e16·26-s + 5.70e17·27-s − 1.90e18·29-s − 2.63e17·30-s + 5.51e18·31-s − 2.19e18·32-s + ⋯
L(s)  = 1  − 0.114·2-s − 1.17·3-s − 0.986·4-s − 0.675·5-s + 0.134·6-s + 0.227·8-s + 0.376·9-s + 0.0772·10-s − 0.822·11-s + 1.15·12-s + 0.726·13-s + 0.792·15-s + 0.960·16-s − 0.675·17-s − 0.0430·18-s + 0.609·19-s + 0.666·20-s + 0.0940·22-s − 0.0694·23-s − 0.266·24-s − 0.544·25-s − 0.0830·26-s + 0.731·27-s − 0.997·29-s − 0.0906·30-s + 1.25·31-s − 0.337·32-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(26-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+25/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $1$
Analytic conductor: \(194.038\)
Root analytic conductor: \(13.9297\)
Motivic weight: \(25\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :25/2),\ 1)\)

Particular Values

\(L(13)\) \(\approx\) \(0.06243701450\)
\(L(\frac12)\) \(\approx\) \(0.06243701450\)
\(L(\frac{27}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 \)
good2 \( 1 + 662.T + 3.35e7T^{2} \)
3 \( 1 + 1.07e6T + 8.47e11T^{2} \)
5 \( 1 + 3.68e8T + 2.98e17T^{2} \)
11 \( 1 + 8.55e12T + 1.08e26T^{2} \)
13 \( 1 - 6.10e13T + 7.05e27T^{2} \)
17 \( 1 + 1.62e15T + 5.77e30T^{2} \)
19 \( 1 - 5.88e15T + 9.30e31T^{2} \)
23 \( 1 + 7.30e15T + 1.10e34T^{2} \)
29 \( 1 + 1.90e18T + 3.63e36T^{2} \)
31 \( 1 - 5.51e18T + 1.92e37T^{2} \)
37 \( 1 + 1.99e19T + 1.60e39T^{2} \)
41 \( 1 - 2.97e19T + 2.08e40T^{2} \)
43 \( 1 + 3.21e20T + 6.86e40T^{2} \)
47 \( 1 + 9.08e20T + 6.34e41T^{2} \)
53 \( 1 + 2.67e21T + 1.27e43T^{2} \)
59 \( 1 + 2.40e22T + 1.86e44T^{2} \)
61 \( 1 - 5.08e21T + 4.29e44T^{2} \)
67 \( 1 + 1.28e23T + 4.48e45T^{2} \)
71 \( 1 - 2.59e23T + 1.91e46T^{2} \)
73 \( 1 + 2.37e23T + 3.82e46T^{2} \)
79 \( 1 + 2.41e23T + 2.75e47T^{2} \)
83 \( 1 + 1.80e24T + 9.48e47T^{2} \)
89 \( 1 - 1.70e24T + 5.42e48T^{2} \)
97 \( 1 + 7.03e23T + 4.66e49T^{2} \)
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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

−10.99779766869088451241507706478, −9.955700309040160775640787502592, −8.633689488231891248910840611273, −7.68737575472262375712270432422, −6.23560983303868858164143505175, −5.23384771089397900682080774570, −4.40919487627425726042163906883, −3.22632256702280174786690715067, −1.34974905724012633373561967006, −0.12527844413031739941923098733, 0.12527844413031739941923098733, 1.34974905724012633373561967006, 3.22632256702280174786690715067, 4.40919487627425726042163906883, 5.23384771089397900682080774570, 6.23560983303868858164143505175, 7.68737575472262375712270432422, 8.633689488231891248910840611273, 9.955700309040160775640787502592, 10.99779766869088451241507706478

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