Properties

Label 2-7e2-7.4-c7-0-11
Degree $2$
Conductor $49$
Sign $-0.386 + 0.922i$
Analytic cond. $15.3068$
Root an. cond. $3.91239$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−9.50 − 16.4i)2-s + (19.7 − 34.1i)3-s + (−116. + 202. i)4-s + (175. + 303. i)5-s − 750.·6-s + 2.01e3·8-s + (314. + 545. i)9-s + (3.32e3 − 5.76e3i)10-s + (3.13e3 − 5.42e3i)11-s + (4.61e3 + 7.98e3i)12-s + 4.12e3·13-s + 1.38e4·15-s + (−4.16e3 − 7.21e3i)16-s + (5.57e3 − 9.64e3i)17-s + (5.98e3 − 1.03e4i)18-s + (8.43e3 + 1.46e4i)19-s + ⋯
L(s)  = 1  + (−0.840 − 1.45i)2-s + (0.421 − 0.730i)3-s + (−0.913 + 1.58i)4-s + (0.626 + 1.08i)5-s − 1.41·6-s + 1.38·8-s + (0.143 + 0.249i)9-s + (1.05 − 1.82i)10-s + (0.710 − 1.22i)11-s + (0.770 + 1.33i)12-s + 0.520·13-s + 1.05·15-s + (−0.254 − 0.440i)16-s + (0.275 − 0.476i)17-s + (0.242 − 0.419i)18-s + (0.282 + 0.488i)19-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.386 + 0.922i)\, \overline{\Lambda}(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & (-0.386 + 0.922i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $-0.386 + 0.922i$
Analytic conductor: \(15.3068\)
Root analytic conductor: \(3.91239\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: $\chi_{49} (18, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :7/2),\ -0.386 + 0.922i)\)

Particular Values

\(L(4)\) \(\approx\) \(0.859543 - 1.29219i\)
\(L(\frac12)\) \(\approx\) \(0.859543 - 1.29219i\)
\(L(\frac{9}{2})\) 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 \( 1 + (9.50 + 16.4i)T + (-64 + 110. i)T^{2} \)
3 \( 1 + (-19.7 + 34.1i)T + (-1.09e3 - 1.89e3i)T^{2} \)
5 \( 1 + (-175. - 303. i)T + (-3.90e4 + 6.76e4i)T^{2} \)
11 \( 1 + (-3.13e3 + 5.42e3i)T + (-9.74e6 - 1.68e7i)T^{2} \)
13 \( 1 - 4.12e3T + 6.27e7T^{2} \)
17 \( 1 + (-5.57e3 + 9.64e3i)T + (-2.05e8 - 3.55e8i)T^{2} \)
19 \( 1 + (-8.43e3 - 1.46e4i)T + (-4.46e8 + 7.74e8i)T^{2} \)
23 \( 1 + (1.73e4 + 3.01e4i)T + (-1.70e9 + 2.94e9i)T^{2} \)
29 \( 1 - 4.08e4T + 1.72e10T^{2} \)
31 \( 1 + (2.19e4 - 3.80e4i)T + (-1.37e10 - 2.38e10i)T^{2} \)
37 \( 1 + (3.89e4 + 6.75e4i)T + (-4.74e10 + 8.22e10i)T^{2} \)
41 \( 1 - 4.18e4T + 1.94e11T^{2} \)
43 \( 1 - 3.31e5T + 2.71e11T^{2} \)
47 \( 1 + (-5.50e5 - 9.53e5i)T + (-2.53e11 + 4.38e11i)T^{2} \)
53 \( 1 + (-7.80e5 + 1.35e6i)T + (-5.87e11 - 1.01e12i)T^{2} \)
59 \( 1 + (1.37e5 - 2.37e5i)T + (-1.24e12 - 2.15e12i)T^{2} \)
61 \( 1 + (1.52e6 + 2.64e6i)T + (-1.57e12 + 2.72e12i)T^{2} \)
67 \( 1 + (-3.22e5 + 5.59e5i)T + (-3.03e12 - 5.24e12i)T^{2} \)
71 \( 1 - 5.31e5T + 9.09e12T^{2} \)
73 \( 1 + (-2.32e6 + 4.03e6i)T + (-5.52e12 - 9.56e12i)T^{2} \)
79 \( 1 + (1.17e6 + 2.03e6i)T + (-9.60e12 + 1.66e13i)T^{2} \)
83 \( 1 - 1.07e5T + 2.71e13T^{2} \)
89 \( 1 + (-3.98e6 - 6.89e6i)T + (-2.21e13 + 3.83e13i)T^{2} \)
97 \( 1 + 1.44e7T + 8.07e13T^{2} \)
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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

−13.64046800722685438197122444293, −12.35388069749858018952253516920, −11.14144323921324859106304269679, −10.37145179637748512057972637069, −9.100100269089350417673862888141, −7.917810312957067729795527412029, −6.35042508713348866117268558370, −3.40859789148693904180057548395, −2.31689925267250074097329590879, −1.03150034119275538849374066420, 1.18967230366982898565470394720, 4.34076495725300904493562310279, 5.68066459219110289519813673015, 7.08897438154646755588434664461, 8.618138463793973816779691615628, 9.316667825029559079435757814199, 10.05668535598122969266398595881, 12.34183402501047548357029638465, 13.80145783963063062148635091462, 14.96655319418128209300229536896

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