Properties

Label 2-19-19.8-c4-0-3
Degree $2$
Conductor $19$
Sign $0.726 - 0.687i$
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  + (5.68 + 3.28i)2-s + (−3.48 − 2.01i)3-s + (13.5 + 23.4i)4-s + (5.86 − 10.1i)5-s + (−13.2 − 22.8i)6-s − 44.4·7-s + 72.7i·8-s + (−32.3 − 56.1i)9-s + (66.6 − 38.4i)10-s + 186.·11-s − 109. i·12-s + (−174. + 101. i)13-s + (−252. − 145. i)14-s + (−40.8 + 23.6i)15-s + (−22.0 + 38.1i)16-s + (−166. + 289. i)17-s + ⋯
L(s)  = 1  + (1.42 + 0.820i)2-s + (−0.387 − 0.223i)3-s + (0.846 + 1.46i)4-s + (0.234 − 0.406i)5-s + (−0.367 − 0.635i)6-s − 0.906·7-s + 1.13i·8-s + (−0.399 − 0.692i)9-s + (0.666 − 0.384i)10-s + 1.54·11-s − 0.757i·12-s + (−1.03 + 0.597i)13-s + (−1.28 − 0.743i)14-s + (−0.181 + 0.104i)15-s + (−0.0860 + 0.148i)16-s + (−0.577 + 1.00i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.726 - 0.687i)\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & (0.726 - 0.687i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(19\)
Sign: $0.726 - 0.687i$
Analytic conductor: \(1.96402\)
Root analytic conductor: \(1.40143\)
Motivic weight: \(4\)
Rational: no
Arithmetic: yes
Character: $\chi_{19} (8, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 19,\ (\ :2),\ 0.726 - 0.687i)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(1.93386 + 0.770242i\)
\(L(\frac12)\) \(\approx\) \(1.93386 + 0.770242i\)
\(L(3)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad19 \( 1 + (-221. - 285. i)T \)
good2 \( 1 + (-5.68 - 3.28i)T + (8 + 13.8i)T^{2} \)
3 \( 1 + (3.48 + 2.01i)T + (40.5 + 70.1i)T^{2} \)
5 \( 1 + (-5.86 + 10.1i)T + (-312.5 - 541. i)T^{2} \)
7 \( 1 + 44.4T + 2.40e3T^{2} \)
11 \( 1 - 186.T + 1.46e4T^{2} \)
13 \( 1 + (174. - 101. i)T + (1.42e4 - 2.47e4i)T^{2} \)
17 \( 1 + (166. - 289. i)T + (-4.17e4 - 7.23e4i)T^{2} \)
23 \( 1 + (170. + 295. i)T + (-1.39e5 + 2.42e5i)T^{2} \)
29 \( 1 + (-92.2 + 53.2i)T + (3.53e5 - 6.12e5i)T^{2} \)
31 \( 1 + 1.08e3iT - 9.23e5T^{2} \)
37 \( 1 + 664. iT - 1.87e6T^{2} \)
41 \( 1 + (973. + 562. i)T + (1.41e6 + 2.44e6i)T^{2} \)
43 \( 1 + (-1.67e3 + 2.90e3i)T + (-1.70e6 - 2.96e6i)T^{2} \)
47 \( 1 + (-407. - 706. i)T + (-2.43e6 + 4.22e6i)T^{2} \)
53 \( 1 + (2.48e3 - 1.43e3i)T + (3.94e6 - 6.83e6i)T^{2} \)
59 \( 1 + (-1.46e3 - 847. i)T + (6.05e6 + 1.04e7i)T^{2} \)
61 \( 1 + (-910. - 1.57e3i)T + (-6.92e6 + 1.19e7i)T^{2} \)
67 \( 1 + (5.41e3 - 3.12e3i)T + (1.00e7 - 1.74e7i)T^{2} \)
71 \( 1 + (-1.85e3 - 1.07e3i)T + (1.27e7 + 2.20e7i)T^{2} \)
73 \( 1 + (-3.21e3 + 5.56e3i)T + (-1.41e7 - 2.45e7i)T^{2} \)
79 \( 1 + (-6.64e3 - 3.83e3i)T + (1.94e7 + 3.37e7i)T^{2} \)
83 \( 1 + 1.61e3T + 4.74e7T^{2} \)
89 \( 1 + (7.26e3 - 4.19e3i)T + (3.13e7 - 5.43e7i)T^{2} \)
97 \( 1 + (-5.29e3 - 3.05e3i)T + (4.42e7 + 7.66e7i)T^{2} \)
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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

−17.17827241463425277718126761016, −16.60252502299223731388706201395, −15.05233971848498729927232276025, −14.08718917861576159703778826741, −12.65411679135048751230276476174, −11.94327468691302564288814755157, −9.319953329010519995603378229312, −6.86048522745591039438143555157, −5.89986264064007621598236466243, −3.93003981229310913139853285790, 2.92284834520781993355028211720, 4.90362465149445099359028329392, 6.53907450750488461148970737899, 9.746156066308192308934111435050, 11.17650320372238118677937134781, 12.20463317865043118810325111754, 13.60121954119832018915110420175, 14.51630042855497162106736175818, 16.02962969230314289680457178305, 17.52495127328500500226551146553

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