Properties

Label 2-19-19.15-c4-0-4
Degree $2$
Conductor $19$
Sign $0.193 + 0.981i$
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  + (1.85 − 5.09i)2-s + (7.50 − 1.32i)3-s + (−10.2 − 8.58i)4-s + (−16.5 + 13.8i)5-s + (7.17 − 40.6i)6-s + (−1.44 + 2.49i)7-s + (12.4 − 7.16i)8-s + (−21.4 + 7.81i)9-s + (40.0 + 109. i)10-s + (68.6 + 118. i)11-s + (−88.2 − 50.9i)12-s + (87.9 + 15.5i)13-s + (10.0 + 11.9i)14-s + (−105. + 126. i)15-s + (−50.5 − 286. i)16-s + (−493. − 179. i)17-s + ⋯
L(s)  = 1  + (0.463 − 1.27i)2-s + (0.834 − 0.147i)3-s + (−0.639 − 0.536i)4-s + (−0.661 + 0.554i)5-s + (0.199 − 1.13i)6-s + (−0.0294 + 0.0509i)7-s + (0.193 − 0.111i)8-s + (−0.265 + 0.0964i)9-s + (0.400 + 1.09i)10-s + (0.567 + 0.983i)11-s + (−0.612 − 0.353i)12-s + (0.520 + 0.0917i)13-s + (0.0512 + 0.0610i)14-s + (−0.470 + 0.560i)15-s + (−0.197 − 1.12i)16-s + (−1.70 − 0.621i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.193 + 0.981i)\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 19 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & (0.193 + 0.981i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(19\)
Sign: $0.193 + 0.981i$
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: \((2,\ 19,\ (\ :2),\ 0.193 + 0.981i)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(1.34792 - 1.10802i\)
\(L(\frac12)\) \(\approx\) \(1.34792 - 1.10802i\)
\(L(3)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad19 \( 1 + (-357. + 50.5i)T \)
good2 \( 1 + (-1.85 + 5.09i)T + (-12.2 - 10.2i)T^{2} \)
3 \( 1 + (-7.50 + 1.32i)T + (76.1 - 27.7i)T^{2} \)
5 \( 1 + (16.5 - 13.8i)T + (108. - 615. i)T^{2} \)
7 \( 1 + (1.44 - 2.49i)T + (-1.20e3 - 2.07e3i)T^{2} \)
11 \( 1 + (-68.6 - 118. i)T + (-7.32e3 + 1.26e4i)T^{2} \)
13 \( 1 + (-87.9 - 15.5i)T + (2.68e4 + 9.76e3i)T^{2} \)
17 \( 1 + (493. + 179. i)T + (6.39e4 + 5.36e4i)T^{2} \)
23 \( 1 + (479. + 401. i)T + (4.85e4 + 2.75e5i)T^{2} \)
29 \( 1 + (8.32 + 22.8i)T + (-5.41e5 + 4.54e5i)T^{2} \)
31 \( 1 + (-112. - 65.0i)T + (4.61e5 + 7.99e5i)T^{2} \)
37 \( 1 + 621. iT - 1.87e6T^{2} \)
41 \( 1 + (-2.47e3 + 436. i)T + (2.65e6 - 9.66e5i)T^{2} \)
43 \( 1 + (-1.88e3 + 1.57e3i)T + (5.93e5 - 3.36e6i)T^{2} \)
47 \( 1 + (1.52e3 - 556. i)T + (3.73e6 - 3.13e6i)T^{2} \)
53 \( 1 + (-2.18e3 + 2.59e3i)T + (-1.37e6 - 7.77e6i)T^{2} \)
59 \( 1 + (1.20e3 - 3.30e3i)T + (-9.28e6 - 7.78e6i)T^{2} \)
61 \( 1 + (-1.72e3 - 1.44e3i)T + (2.40e6 + 1.36e7i)T^{2} \)
67 \( 1 + (-890. - 2.44e3i)T + (-1.54e7 + 1.29e7i)T^{2} \)
71 \( 1 + (6.07e3 + 7.23e3i)T + (-4.41e6 + 2.50e7i)T^{2} \)
73 \( 1 + (-463. - 2.62e3i)T + (-2.66e7 + 9.71e6i)T^{2} \)
79 \( 1 + (-1.94e3 + 342. i)T + (3.66e7 - 1.33e7i)T^{2} \)
83 \( 1 + (3.44e3 - 5.96e3i)T + (-2.37e7 - 4.11e7i)T^{2} \)
89 \( 1 + (-8.06e3 - 1.42e3i)T + (5.89e7 + 2.14e7i)T^{2} \)
97 \( 1 + (-2.39e3 + 6.59e3i)T + (-6.78e7 - 5.69e7i)T^{2} \)
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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

−17.97844420447393451882684110243, −15.85524888773645084386414582605, −14.45262696329245060254425801927, −13.40781756511339822642007213946, −11.95189849542176840541741196355, −10.94137918131800043139354175296, −9.216871014678406267997858107712, −7.31790746017581964491748770553, −4.06202622091989974104034878444, −2.45460348152822752547204420606, 4.01764326387887060817530992484, 6.08289670985384580584826247782, 7.957969701098592813426430867313, 8.878160436143700903999042959132, 11.39399287721591823827203251654, 13.38629161235375279078828338399, 14.28116564971873636770690645001, 15.52998348765483808948947404585, 16.23272067656771609372961881632, 17.61316787145730950693010102714

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