Properties

Label 2-7e2-1.1-c25-0-39
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  − 1.00e4·2-s + 7.41e5·3-s + 6.82e7·4-s + 7.48e8·5-s − 7.48e9·6-s − 3.50e11·8-s − 2.97e11·9-s − 7.55e12·10-s + 1.30e13·11-s + 5.06e13·12-s + 1.14e14·13-s + 5.55e14·15-s + 1.24e15·16-s + 8.99e14·17-s + 3.00e15·18-s − 1.76e16·19-s + 5.11e16·20-s − 1.31e17·22-s + 1.17e16·23-s − 2.59e17·24-s + 2.62e17·25-s − 1.15e18·26-s − 8.48e17·27-s − 2.64e18·29-s − 5.60e18·30-s + 2.61e18·31-s − 8.20e17·32-s + ⋯
L(s)  = 1  − 1.74·2-s + 0.805·3-s + 2.03·4-s + 1.37·5-s − 1.40·6-s − 1.80·8-s − 0.351·9-s − 2.38·10-s + 1.25·11-s + 1.63·12-s + 1.36·13-s + 1.10·15-s + 1.10·16-s + 0.374·17-s + 0.612·18-s − 1.82·19-s + 2.79·20-s − 2.18·22-s + 0.111·23-s − 1.45·24-s + 0.881·25-s − 2.37·26-s − 1.08·27-s − 1.38·29-s − 1.92·30-s + 0.596·31-s − 0.125·32-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

\(L(13)\) \(\approx\) \(2.013814975\)
\(L(\frac12)\) \(\approx\) \(2.013814975\)
\(L(\frac{27}{2})\) 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 \( 1 + 1.00e4T + 3.35e7T^{2} \)
3 \( 1 - 7.41e5T + 8.47e11T^{2} \)
5 \( 1 - 7.48e8T + 2.98e17T^{2} \)
11 \( 1 - 1.30e13T + 1.08e26T^{2} \)
13 \( 1 - 1.14e14T + 7.05e27T^{2} \)
17 \( 1 - 8.99e14T + 5.77e30T^{2} \)
19 \( 1 + 1.76e16T + 9.30e31T^{2} \)
23 \( 1 - 1.17e16T + 1.10e34T^{2} \)
29 \( 1 + 2.64e18T + 3.63e36T^{2} \)
31 \( 1 - 2.61e18T + 1.92e37T^{2} \)
37 \( 1 - 1.53e19T + 1.60e39T^{2} \)
41 \( 1 + 7.08e19T + 2.08e40T^{2} \)
43 \( 1 - 3.68e20T + 6.86e40T^{2} \)
47 \( 1 + 1.15e21T + 6.34e41T^{2} \)
53 \( 1 - 7.12e21T + 1.27e43T^{2} \)
59 \( 1 + 5.10e21T + 1.86e44T^{2} \)
61 \( 1 - 6.66e21T + 4.29e44T^{2} \)
67 \( 1 - 9.02e21T + 4.48e45T^{2} \)
71 \( 1 - 1.81e23T + 1.91e46T^{2} \)
73 \( 1 - 3.01e23T + 3.82e46T^{2} \)
79 \( 1 + 3.98e23T + 2.75e47T^{2} \)
83 \( 1 - 1.81e24T + 9.48e47T^{2} \)
89 \( 1 - 2.96e23T + 5.42e48T^{2} \)
97 \( 1 - 6.37e24T + 4.66e49T^{2} \)
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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

−10.49708449108225905763526791500, −9.404616236710335838208444894193, −8.919297617230673701396261432806, −8.120849394912336064454872903549, −6.61341638009415632486342909633, −5.95437140734702240394507326737, −3.70918259882122729210185171800, −2.29933586161611985967627526516, −1.74291549772279875746793006110, −0.76696753941859312778331653154, 0.76696753941859312778331653154, 1.74291549772279875746793006110, 2.29933586161611985967627526516, 3.70918259882122729210185171800, 5.95437140734702240394507326737, 6.61341638009415632486342909633, 8.120849394912336064454872903549, 8.919297617230673701396261432806, 9.404616236710335838208444894193, 10.49708449108225905763526791500

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