Properties

Label 2-7e2-49.8-c3-0-2
Degree $2$
Conductor $49$
Sign $-0.955 - 0.296i$
Analytic cond. $2.89109$
Root an. cond. $1.70032$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (1.88 + 2.36i)2-s + (−5.83 + 2.81i)3-s + (−0.260 + 1.13i)4-s + (−12.6 + 6.09i)5-s + (−17.6 − 8.50i)6-s + (−3.94 + 18.0i)7-s + (18.6 − 8.97i)8-s + (9.31 − 11.6i)9-s + (−38.2 − 18.4i)10-s + (1.11 + 1.40i)11-s + (−1.68 − 7.38i)12-s + (19.6 + 24.6i)13-s + (−50.2 + 24.8i)14-s + (56.6 − 71.0i)15-s + (64.8 + 31.2i)16-s + (3.96 + 17.3i)17-s + ⋯
L(s)  = 1  + (0.667 + 0.837i)2-s + (−1.12 + 0.540i)3-s + (−0.0325 + 0.142i)4-s + (−1.13 + 0.544i)5-s + (−1.20 − 0.578i)6-s + (−0.212 + 0.977i)7-s + (0.823 − 0.396i)8-s + (0.345 − 0.432i)9-s + (−1.21 − 0.583i)10-s + (0.0306 + 0.0384i)11-s + (−0.0405 − 0.177i)12-s + (0.419 + 0.525i)13-s + (−0.959 + 0.474i)14-s + (0.975 − 1.22i)15-s + (1.01 + 0.488i)16-s + (0.0565 + 0.247i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.955 - 0.296i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.955 - 0.296i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $-0.955 - 0.296i$
Analytic conductor: \(2.89109\)
Root analytic conductor: \(1.70032\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{49} (8, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :3/2),\ -0.955 - 0.296i)\)

Particular Values

\(L(2)\) \(\approx\) \(0.145740 + 0.962196i\)
\(L(\frac12)\) \(\approx\) \(0.145740 + 0.962196i\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 + (3.94 - 18.0i)T \)
good2 \( 1 + (-1.88 - 2.36i)T + (-1.78 + 7.79i)T^{2} \)
3 \( 1 + (5.83 - 2.81i)T + (16.8 - 21.1i)T^{2} \)
5 \( 1 + (12.6 - 6.09i)T + (77.9 - 97.7i)T^{2} \)
11 \( 1 + (-1.11 - 1.40i)T + (-296. + 1.29e3i)T^{2} \)
13 \( 1 + (-19.6 - 24.6i)T + (-488. + 2.14e3i)T^{2} \)
17 \( 1 + (-3.96 - 17.3i)T + (-4.42e3 + 2.13e3i)T^{2} \)
19 \( 1 - 34.8T + 6.85e3T^{2} \)
23 \( 1 + (44.3 - 194. i)T + (-1.09e4 - 5.27e3i)T^{2} \)
29 \( 1 + (61.3 + 268. i)T + (-2.19e4 + 1.05e4i)T^{2} \)
31 \( 1 - 116.T + 2.97e4T^{2} \)
37 \( 1 + (-7.15 - 31.3i)T + (-4.56e4 + 2.19e4i)T^{2} \)
41 \( 1 + (294. - 141. i)T + (4.29e4 - 5.38e4i)T^{2} \)
43 \( 1 + (-405. - 195. i)T + (4.95e4 + 6.21e4i)T^{2} \)
47 \( 1 + (227. + 285. i)T + (-2.31e4 + 1.01e5i)T^{2} \)
53 \( 1 + (91.3 - 400. i)T + (-1.34e5 - 6.45e4i)T^{2} \)
59 \( 1 + (-753. - 362. i)T + (1.28e5 + 1.60e5i)T^{2} \)
61 \( 1 + (-1.60 - 7.03i)T + (-2.04e5 + 9.84e4i)T^{2} \)
67 \( 1 - 671.T + 3.00e5T^{2} \)
71 \( 1 + (159. - 699. i)T + (-3.22e5 - 1.55e5i)T^{2} \)
73 \( 1 + (-341. + 428. i)T + (-8.65e4 - 3.79e5i)T^{2} \)
79 \( 1 - 195.T + 4.93e5T^{2} \)
83 \( 1 + (-801. + 1.00e3i)T + (-1.27e5 - 5.57e5i)T^{2} \)
89 \( 1 + (378. - 474. i)T + (-1.56e5 - 6.87e5i)T^{2} \)
97 \( 1 - 665.T + 9.12e5T^{2} \)
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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

−15.64502110235931498852485810780, −14.98739385595416809656604687699, −13.53866199900298719503193924331, −11.85831188447278928628075499559, −11.31095234330484767796849777761, −9.865080963006929778449386677898, −7.83553167481656198112545061357, −6.39353243654275198420985999544, −5.42530592666347260142732592855, −3.99763202015455250463416825851, 0.72235578538241783759695500101, 3.66744826637582117436631560895, 4.98130365391546669877365438642, 6.90149556713670426348559776895, 8.163663568533916155584562340107, 10.56099652145871230109118189775, 11.34530476694917110731729148949, 12.34072261043912725198630574050, 12.84861920644446549030998567342, 14.20043683791754679431528162349

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