Properties

Label 2-7e2-1.1-c25-0-69
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 $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 367.·2-s + 1.08e6·3-s − 3.34e7·4-s + 3.08e8·5-s + 3.96e8·6-s − 2.45e10·8-s + 3.20e11·9-s + 1.13e11·10-s + 1.61e13·11-s − 3.61e13·12-s − 4.66e13·13-s + 3.32e14·15-s + 1.11e15·16-s − 2.51e15·17-s + 1.17e14·18-s − 5.57e15·19-s − 1.02e16·20-s + 5.93e15·22-s + 1.23e17·23-s − 2.65e16·24-s − 2.03e17·25-s − 1.71e16·26-s − 5.69e17·27-s − 2.33e18·29-s + 1.22e17·30-s − 4.77e17·31-s + 1.23e18·32-s + ⋯
L(s)  = 1  + 0.0633·2-s + 1.17·3-s − 0.995·4-s + 0.564·5-s + 0.0744·6-s − 0.126·8-s + 0.377·9-s + 0.0357·10-s + 1.55·11-s − 1.16·12-s − 0.555·13-s + 0.662·15-s + 0.987·16-s − 1.04·17-s + 0.0239·18-s − 0.577·19-s − 0.562·20-s + 0.0984·22-s + 1.17·23-s − 0.148·24-s − 0.681·25-s − 0.0352·26-s − 0.730·27-s − 1.22·29-s + 0.0420·30-s − 0.108·31-s + 0.189·32-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: \(1\)
Selberg data: \((2,\ 49,\ (\ :25/2),\ -1)\)

Particular Values

\(L(13)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{27}{2})\) 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 \( 1 - 367.T + 3.35e7T^{2} \)
3 \( 1 - 1.08e6T + 8.47e11T^{2} \)
5 \( 1 - 3.08e8T + 2.98e17T^{2} \)
11 \( 1 - 1.61e13T + 1.08e26T^{2} \)
13 \( 1 + 4.66e13T + 7.05e27T^{2} \)
17 \( 1 + 2.51e15T + 5.77e30T^{2} \)
19 \( 1 + 5.57e15T + 9.30e31T^{2} \)
23 \( 1 - 1.23e17T + 1.10e34T^{2} \)
29 \( 1 + 2.33e18T + 3.63e36T^{2} \)
31 \( 1 + 4.77e17T + 1.92e37T^{2} \)
37 \( 1 - 4.92e19T + 1.60e39T^{2} \)
41 \( 1 + 1.27e20T + 2.08e40T^{2} \)
43 \( 1 + 5.02e19T + 6.86e40T^{2} \)
47 \( 1 - 2.55e20T + 6.34e41T^{2} \)
53 \( 1 - 4.42e21T + 1.27e43T^{2} \)
59 \( 1 + 1.07e22T + 1.86e44T^{2} \)
61 \( 1 - 2.90e22T + 4.29e44T^{2} \)
67 \( 1 - 7.44e22T + 4.48e45T^{2} \)
71 \( 1 + 1.68e23T + 1.91e46T^{2} \)
73 \( 1 + 3.62e23T + 3.82e46T^{2} \)
79 \( 1 + 7.23e23T + 2.75e47T^{2} \)
83 \( 1 + 9.06e23T + 9.48e47T^{2} \)
89 \( 1 - 1.74e24T + 5.42e48T^{2} \)
97 \( 1 + 4.24e24T + 4.66e49T^{2} \)
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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

−9.841918258767672195154597054215, −9.116131346392541699310725452625, −8.570056675218837315957181289596, −7.15995914022425894920756538287, −5.82355880947268901017899879457, −4.43741045444836247904316124975, −3.64126369544419030285777405370, −2.42146384631535454599878547807, −1.38723369024990795425875209715, 0, 1.38723369024990795425875209715, 2.42146384631535454599878547807, 3.64126369544419030285777405370, 4.43741045444836247904316124975, 5.82355880947268901017899879457, 7.15995914022425894920756538287, 8.570056675218837315957181289596, 9.116131346392541699310725452625, 9.841918258767672195154597054215

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