Properties

Label 2-19-19.15-c4-0-1
Degree $2$
Conductor $19$
Sign $-0.692 - 0.721i$
Analytic cond. $1.96402$
Root an. cond. $1.40143$
Motivic weight $4$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−0.338 + 0.930i)2-s + (−13.3 + 2.36i)3-s + (11.5 + 9.65i)4-s + (−30.8 + 25.8i)5-s + (2.33 − 13.2i)6-s + (23.4 − 40.6i)7-s + (−26.6 + 15.3i)8-s + (97.4 − 35.4i)9-s + (−13.6 − 37.4i)10-s + (80.5 + 139. i)11-s + (−176. − 102. i)12-s + (−10.3 − 1.83i)13-s + (29.9 + 35.6i)14-s + (351. − 418. i)15-s + (36.4 + 206. i)16-s + (−103. − 37.5i)17-s + ⋯
L(s)  = 1  + (−0.0846 + 0.232i)2-s + (−1.48 + 0.262i)3-s + (0.719 + 0.603i)4-s + (−1.23 + 1.03i)5-s + (0.0649 − 0.368i)6-s + (0.479 − 0.830i)7-s + (−0.415 + 0.239i)8-s + (1.20 − 0.437i)9-s + (−0.136 − 0.374i)10-s + (0.665 + 1.15i)11-s + (−1.22 − 0.708i)12-s + (−0.0614 − 0.0108i)13-s + (0.152 + 0.181i)14-s + (1.56 − 1.86i)15-s + (0.142 + 0.807i)16-s + (−0.357 − 0.129i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.692 - 0.721i)\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & (-0.692 - 0.721i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(19\)
Sign: $-0.692 - 0.721i$
Analytic conductor: \(1.96402\)
Root analytic conductor: \(1.40143\)
Motivic weight: \(4\)
Rational: no
Arithmetic: yes
Character: $\chi_{19} (15, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 19,\ (\ :2),\ -0.692 - 0.721i)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(0.250239 + 0.586614i\)
\(L(\frac12)\) \(\approx\) \(0.250239 + 0.586614i\)
\(L(3)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad19 \( 1 + (273. - 235. i)T \)
good2 \( 1 + (0.338 - 0.930i)T + (-12.2 - 10.2i)T^{2} \)
3 \( 1 + (13.3 - 2.36i)T + (76.1 - 27.7i)T^{2} \)
5 \( 1 + (30.8 - 25.8i)T + (108. - 615. i)T^{2} \)
7 \( 1 + (-23.4 + 40.6i)T + (-1.20e3 - 2.07e3i)T^{2} \)
11 \( 1 + (-80.5 - 139. i)T + (-7.32e3 + 1.26e4i)T^{2} \)
13 \( 1 + (10.3 + 1.83i)T + (2.68e4 + 9.76e3i)T^{2} \)
17 \( 1 + (103. + 37.5i)T + (6.39e4 + 5.36e4i)T^{2} \)
23 \( 1 + (-506. - 424. i)T + (4.85e4 + 2.75e5i)T^{2} \)
29 \( 1 + (188. + 518. i)T + (-5.41e5 + 4.54e5i)T^{2} \)
31 \( 1 + (-821. - 474. i)T + (4.61e5 + 7.99e5i)T^{2} \)
37 \( 1 + 1.18e3iT - 1.87e6T^{2} \)
41 \( 1 + (64.1 - 11.3i)T + (2.65e6 - 9.66e5i)T^{2} \)
43 \( 1 + (-217. + 182. i)T + (5.93e5 - 3.36e6i)T^{2} \)
47 \( 1 + (-680. + 247. i)T + (3.73e6 - 3.13e6i)T^{2} \)
53 \( 1 + (2.49e3 - 2.97e3i)T + (-1.37e6 - 7.77e6i)T^{2} \)
59 \( 1 + (-939. + 2.58e3i)T + (-9.28e6 - 7.78e6i)T^{2} \)
61 \( 1 + (-3.74e3 - 3.14e3i)T + (2.40e6 + 1.36e7i)T^{2} \)
67 \( 1 + (-1.58e3 - 4.34e3i)T + (-1.54e7 + 1.29e7i)T^{2} \)
71 \( 1 + (2.41e3 + 2.88e3i)T + (-4.41e6 + 2.50e7i)T^{2} \)
73 \( 1 + (283. + 1.60e3i)T + (-2.66e7 + 9.71e6i)T^{2} \)
79 \( 1 + (-1.03e4 + 1.83e3i)T + (3.66e7 - 1.33e7i)T^{2} \)
83 \( 1 + (-1.33e3 + 2.31e3i)T + (-2.37e7 - 4.11e7i)T^{2} \)
89 \( 1 + (660. + 116. i)T + (5.89e7 + 2.14e7i)T^{2} \)
97 \( 1 + (4.11e3 - 1.12e4i)T + (-6.78e7 - 5.69e7i)T^{2} \)
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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

−17.68520485828010941817002150836, −17.05571380086640759918784487846, −15.80182660278590727422913590749, −14.84876311891346132821607382885, −12.25703990781852799937234834992, −11.39671948790673150619890667553, −10.60863813372296708453358541802, −7.53817037148865803235031575186, −6.66140446917530472598091880572, −4.15064573969368952265953667573, 0.73134389226624472353781958121, 5.02411475864727691034841267623, 6.48879406738333906564508799998, 8.643691807965243595937913231418, 11.08790673734711870630324319262, 11.60162692815129209695674225969, 12.57113050473427363690255746538, 15.12205747355287301024452129213, 16.17408015812116878033335749893, 17.04418877955187211062966818543

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