Properties

Label 2-7e2-1.1-c25-0-36
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  − 9.64e3·2-s + 1.23e6·3-s + 5.95e7·4-s + 2.52e8·5-s − 1.18e10·6-s − 2.50e11·8-s + 6.67e11·9-s − 2.43e12·10-s − 1.14e13·11-s + 7.32e13·12-s + 1.40e14·13-s + 3.10e14·15-s + 4.21e14·16-s − 1.07e14·17-s − 6.44e15·18-s + 1.59e16·19-s + 1.50e16·20-s + 1.10e17·22-s − 2.21e15·23-s − 3.08e17·24-s − 2.34e17·25-s − 1.35e18·26-s − 2.21e17·27-s − 9.32e16·29-s − 2.99e18·30-s + 3.74e18·31-s + 4.34e18·32-s + ⋯
L(s)  = 1  − 1.66·2-s + 1.33·3-s + 1.77·4-s + 0.462·5-s − 2.22·6-s − 1.29·8-s + 0.787·9-s − 0.769·10-s − 1.09·11-s + 2.37·12-s + 1.67·13-s + 0.617·15-s + 0.374·16-s − 0.0447·17-s − 1.31·18-s + 1.65·19-s + 0.820·20-s + 1.83·22-s − 0.0210·23-s − 1.72·24-s − 0.786·25-s − 2.79·26-s − 0.283·27-s − 0.0489·29-s − 1.02·30-s + 0.852·31-s + 0.666·32-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

\(L(13)\) \(\approx\) \(1.975045142\)
\(L(\frac12)\) \(\approx\) \(1.975045142\)
\(L(\frac{27}{2})\) 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 \( 1 + 9.64e3T + 3.35e7T^{2} \)
3 \( 1 - 1.23e6T + 8.47e11T^{2} \)
5 \( 1 - 2.52e8T + 2.98e17T^{2} \)
11 \( 1 + 1.14e13T + 1.08e26T^{2} \)
13 \( 1 - 1.40e14T + 7.05e27T^{2} \)
17 \( 1 + 1.07e14T + 5.77e30T^{2} \)
19 \( 1 - 1.59e16T + 9.30e31T^{2} \)
23 \( 1 + 2.21e15T + 1.10e34T^{2} \)
29 \( 1 + 9.32e16T + 3.63e36T^{2} \)
31 \( 1 - 3.74e18T + 1.92e37T^{2} \)
37 \( 1 + 6.76e19T + 1.60e39T^{2} \)
41 \( 1 - 1.18e20T + 2.08e40T^{2} \)
43 \( 1 + 2.95e20T + 6.86e40T^{2} \)
47 \( 1 - 8.34e20T + 6.34e41T^{2} \)
53 \( 1 - 2.97e21T + 1.27e43T^{2} \)
59 \( 1 - 1.93e22T + 1.86e44T^{2} \)
61 \( 1 - 2.53e21T + 4.29e44T^{2} \)
67 \( 1 - 9.75e22T + 4.48e45T^{2} \)
71 \( 1 - 2.43e23T + 1.91e46T^{2} \)
73 \( 1 + 1.75e23T + 3.82e46T^{2} \)
79 \( 1 + 7.09e23T + 2.75e47T^{2} \)
83 \( 1 + 8.81e23T + 9.48e47T^{2} \)
89 \( 1 - 2.12e24T + 5.42e48T^{2} \)
97 \( 1 - 6.70e23T + 4.66e49T^{2} \)
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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

−10.36022174831996941483243510105, −9.592500237830438834479780638475, −8.627668805927127155833491229533, −8.084320319044310704692722310609, −7.08766997341505183000498730181, −5.61967714233769422367217445572, −3.57883066712030015399921721963, −2.57751873619972670533580843727, −1.69021120016796351871431071755, −0.73181606246207173721780291974, 0.73181606246207173721780291974, 1.69021120016796351871431071755, 2.57751873619972670533580843727, 3.57883066712030015399921721963, 5.61967714233769422367217445572, 7.08766997341505183000498730181, 8.084320319044310704692722310609, 8.627668805927127155833491229533, 9.592500237830438834479780638475, 10.36022174831996941483243510105

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