Properties

Label 2-7e2-1.1-c25-0-3
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  − 6.77e3·2-s + 4.09e5·3-s + 1.23e7·4-s + 2.95e8·5-s − 2.77e9·6-s + 1.43e11·8-s − 6.79e11·9-s − 2.00e12·10-s + 2.31e12·11-s + 5.04e12·12-s − 1.47e14·13-s + 1.21e14·15-s − 1.38e15·16-s − 3.82e15·17-s + 4.60e15·18-s − 4.18e15·19-s + 3.64e15·20-s − 1.57e16·22-s − 6.35e16·23-s + 5.89e16·24-s − 2.10e17·25-s + 9.98e17·26-s − 6.25e17·27-s − 2.10e18·29-s − 8.20e17·30-s − 1.11e18·31-s + 4.57e18·32-s + ⋯
L(s)  = 1  − 1.16·2-s + 0.444·3-s + 0.367·4-s + 0.542·5-s − 0.520·6-s + 0.739·8-s − 0.802·9-s − 0.633·10-s + 0.222·11-s + 0.163·12-s − 1.75·13-s + 0.241·15-s − 1.23·16-s − 1.59·17-s + 0.937·18-s − 0.433·19-s + 0.199·20-s − 0.260·22-s − 0.604·23-s + 0.329·24-s − 0.706·25-s + 2.05·26-s − 0.801·27-s − 1.10·29-s − 0.282·30-s − 0.255·31-s + 0.701·32-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

\(L(13)\) \(\approx\) \(0.2377779264\)
\(L(\frac12)\) \(\approx\) \(0.2377779264\)
\(L(\frac{27}{2})\) 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 \( 1 + 6.77e3T + 3.35e7T^{2} \)
3 \( 1 - 4.09e5T + 8.47e11T^{2} \)
5 \( 1 - 2.95e8T + 2.98e17T^{2} \)
11 \( 1 - 2.31e12T + 1.08e26T^{2} \)
13 \( 1 + 1.47e14T + 7.05e27T^{2} \)
17 \( 1 + 3.82e15T + 5.77e30T^{2} \)
19 \( 1 + 4.18e15T + 9.30e31T^{2} \)
23 \( 1 + 6.35e16T + 1.10e34T^{2} \)
29 \( 1 + 2.10e18T + 3.63e36T^{2} \)
31 \( 1 + 1.11e18T + 1.92e37T^{2} \)
37 \( 1 + 5.33e19T + 1.60e39T^{2} \)
41 \( 1 - 3.82e19T + 2.08e40T^{2} \)
43 \( 1 - 2.38e20T + 6.86e40T^{2} \)
47 \( 1 + 6.40e20T + 6.34e41T^{2} \)
53 \( 1 - 2.95e21T + 1.27e43T^{2} \)
59 \( 1 - 2.38e22T + 1.86e44T^{2} \)
61 \( 1 - 3.86e21T + 4.29e44T^{2} \)
67 \( 1 + 3.90e22T + 4.48e45T^{2} \)
71 \( 1 + 2.27e23T + 1.91e46T^{2} \)
73 \( 1 - 1.25e23T + 3.82e46T^{2} \)
79 \( 1 - 7.68e23T + 2.75e47T^{2} \)
83 \( 1 + 5.33e22T + 9.48e47T^{2} \)
89 \( 1 - 1.73e24T + 5.42e48T^{2} \)
97 \( 1 + 8.77e24T + 4.66e49T^{2} \)
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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

−10.53474601203705806430541928967, −9.515493407366186972233262140947, −8.915037829610714817790022045223, −7.86201964213313479412350817143, −6.83162036756079923443525485778, −5.37515622394491544496284371933, −4.11099599292289029167117769235, −2.39276682751047639157152613419, −1.90825498174236848535965464576, −0.22558844903335827426187997272, 0.22558844903335827426187997272, 1.90825498174236848535965464576, 2.39276682751047639157152613419, 4.11099599292289029167117769235, 5.37515622394491544496284371933, 6.83162036756079923443525485778, 7.86201964213313479412350817143, 8.915037829610714817790022045223, 9.515493407366186972233262140947, 10.53474601203705806430541928967

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