Properties

Label 2-19-19.15-c4-0-0
Degree $2$
Conductor $19$
Sign $-0.975 + 0.221i$
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  + (−2.22 + 6.10i)2-s + (−6.80 + 1.19i)3-s + (−20.0 − 16.8i)4-s + (10.4 − 8.75i)5-s + (7.79 − 44.1i)6-s + (−40.5 + 70.1i)7-s + (57.5 − 33.2i)8-s + (−31.2 + 11.3i)9-s + (30.2 + 83.2i)10-s + (22.3 + 38.7i)11-s + (156. + 90.5i)12-s + (275. + 48.6i)13-s + (−338. − 403. i)14-s + (−60.4 + 72.0i)15-s + (2.12 + 12.0i)16-s + (−122. − 44.7i)17-s + ⋯
L(s)  = 1  + (−0.555 + 1.52i)2-s + (−0.755 + 0.133i)3-s + (−1.25 − 1.05i)4-s + (0.417 − 0.350i)5-s + (0.216 − 1.22i)6-s + (−0.826 + 1.43i)7-s + (0.899 − 0.519i)8-s + (−0.386 + 0.140i)9-s + (0.302 + 0.832i)10-s + (0.184 + 0.319i)11-s + (1.08 + 0.628i)12-s + (1.63 + 0.287i)13-s + (−1.72 − 2.05i)14-s + (−0.268 + 0.320i)15-s + (0.00828 + 0.0469i)16-s + (−0.425 − 0.154i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.975 + 0.221i)\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & (-0.975 + 0.221i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(19\)
Sign: $-0.975 + 0.221i$
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: \((2,\ 19,\ (\ :2),\ -0.975 + 0.221i)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(0.0625894 - 0.558269i\)
\(L(\frac12)\) \(\approx\) \(0.0625894 - 0.558269i\)
\(L(3)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad19 \( 1 + (-60.7 - 355. i)T \)
good2 \( 1 + (2.22 - 6.10i)T + (-12.2 - 10.2i)T^{2} \)
3 \( 1 + (6.80 - 1.19i)T + (76.1 - 27.7i)T^{2} \)
5 \( 1 + (-10.4 + 8.75i)T + (108. - 615. i)T^{2} \)
7 \( 1 + (40.5 - 70.1i)T + (-1.20e3 - 2.07e3i)T^{2} \)
11 \( 1 + (-22.3 - 38.7i)T + (-7.32e3 + 1.26e4i)T^{2} \)
13 \( 1 + (-275. - 48.6i)T + (2.68e4 + 9.76e3i)T^{2} \)
17 \( 1 + (122. + 44.7i)T + (6.39e4 + 5.36e4i)T^{2} \)
23 \( 1 + (-160. - 134. i)T + (4.85e4 + 2.75e5i)T^{2} \)
29 \( 1 + (493. + 1.35e3i)T + (-5.41e5 + 4.54e5i)T^{2} \)
31 \( 1 + (179. + 103. i)T + (4.61e5 + 7.99e5i)T^{2} \)
37 \( 1 - 1.73e3iT - 1.87e6T^{2} \)
41 \( 1 + (-788. + 139. i)T + (2.65e6 - 9.66e5i)T^{2} \)
43 \( 1 + (528. - 443. i)T + (5.93e5 - 3.36e6i)T^{2} \)
47 \( 1 + (354. - 128. i)T + (3.73e6 - 3.13e6i)T^{2} \)
53 \( 1 + (-1.81e3 + 2.16e3i)T + (-1.37e6 - 7.77e6i)T^{2} \)
59 \( 1 + (1.65e3 - 4.54e3i)T + (-9.28e6 - 7.78e6i)T^{2} \)
61 \( 1 + (-1.07e3 - 901. i)T + (2.40e6 + 1.36e7i)T^{2} \)
67 \( 1 + (9.83 + 27.0i)T + (-1.54e7 + 1.29e7i)T^{2} \)
71 \( 1 + (-1.84e3 - 2.19e3i)T + (-4.41e6 + 2.50e7i)T^{2} \)
73 \( 1 + (-516. - 2.92e3i)T + (-2.66e7 + 9.71e6i)T^{2} \)
79 \( 1 + (-6.81e3 + 1.20e3i)T + (3.66e7 - 1.33e7i)T^{2} \)
83 \( 1 + (-646. + 1.12e3i)T + (-2.37e7 - 4.11e7i)T^{2} \)
89 \( 1 + (-5.23e3 - 922. i)T + (5.89e7 + 2.14e7i)T^{2} \)
97 \( 1 + (-279. + 767. i)T + (-6.78e7 - 5.69e7i)T^{2} \)
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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

−18.06373343956747709904734016171, −16.91416392438891257228734876123, −16.07923551505883652590772128874, −15.15274796543280946120307290607, −13.44029820670417473757613343155, −11.69024145011154862397446499355, −9.534637421527875355891612197287, −8.493656016027657214833752178486, −6.27023333023614057601644083683, −5.60409934805501060831662063688, 0.68872361649768522889277058069, 3.49389117202782567080854544625, 6.48889712360946411126568412487, 9.032668093955001437486850917994, 10.66301024888161675727410380015, 11.03985870740908854496273646835, 12.76937832014313618664199630462, 13.77464894847104477871750352517, 16.32190301095735138883777600591, 17.54055006765074302670853509847

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