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Properties

Label 2-855-19.11-c1-0-10
Degree $2$
Conductor $855$
Sign $0.998 + 0.0548i$
Analytic cond. $6.82720$
Root an. cond. $2.61289$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−0.898 + 1.55i)2-s + (−0.613 − 1.06i)4-s + (−0.5 + 0.866i)5-s − 3.41·7-s − 1.38·8-s + (−0.898 − 1.55i)10-s + 4.35·11-s + (−2.49 − 4.31i)13-s + (3.06 − 5.31i)14-s + (2.47 − 4.28i)16-s + (−0.0290 + 0.0503i)17-s + (−1.10 − 4.21i)19-s + 1.22·20-s + (−3.91 + 6.77i)22-s + (0.216 + 0.374i)23-s + ⋯
L(s)  = 1  + (−0.635 + 1.10i)2-s + (−0.306 − 0.531i)4-s + (−0.223 + 0.387i)5-s − 1.29·7-s − 0.490·8-s + (−0.284 − 0.491i)10-s + 1.31·11-s + (−0.690 − 1.19i)13-s + (0.819 − 1.41i)14-s + (0.618 − 1.07i)16-s + (−0.00704 + 0.0122i)17-s + (−0.253 − 0.967i)19-s + 0.274·20-s + (−0.834 + 1.44i)22-s + (0.0450 + 0.0780i)23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 855 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.998 + 0.0548i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 855 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.998 + 0.0548i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(855\)    =    \(3^{2} \cdot 5 \cdot 19\)
Sign: $0.998 + 0.0548i$
Analytic conductor: \(6.82720\)
Root analytic conductor: \(2.61289\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{855} (676, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 855,\ (\ :1/2),\ 0.998 + 0.0548i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.591800 - 0.0162518i\)
\(L(\frac12)\) \(\approx\) \(0.591800 - 0.0162518i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
5 \( 1 + (0.5 - 0.866i)T \)
19 \( 1 + (1.10 + 4.21i)T \)
good2 \( 1 + (0.898 - 1.55i)T + (-1 - 1.73i)T^{2} \)
7 \( 1 + 3.41T + 7T^{2} \)
11 \( 1 - 4.35T + 11T^{2} \)
13 \( 1 + (2.49 + 4.31i)T + (-6.5 + 11.2i)T^{2} \)
17 \( 1 + (0.0290 - 0.0503i)T + (-8.5 - 14.7i)T^{2} \)
23 \( 1 + (-0.216 - 0.374i)T + (-11.5 + 19.9i)T^{2} \)
29 \( 1 + (-2.74 - 4.75i)T + (-14.5 + 25.1i)T^{2} \)
31 \( 1 + 0.592T + 31T^{2} \)
37 \( 1 - 6.62T + 37T^{2} \)
41 \( 1 + (-0.0818 + 0.141i)T + (-20.5 - 35.5i)T^{2} \)
43 \( 1 + (-3.00 + 5.20i)T + (-21.5 - 37.2i)T^{2} \)
47 \( 1 + (5.54 + 9.60i)T + (-23.5 + 40.7i)T^{2} \)
53 \( 1 + (2.69 + 4.67i)T + (-26.5 + 45.8i)T^{2} \)
59 \( 1 + (1.72 - 2.98i)T + (-29.5 - 51.0i)T^{2} \)
61 \( 1 + (2.15 + 3.73i)T + (-30.5 + 52.8i)T^{2} \)
67 \( 1 + (-3.39 - 5.87i)T + (-33.5 + 58.0i)T^{2} \)
71 \( 1 + (-4.20 + 7.28i)T + (-35.5 - 61.4i)T^{2} \)
73 \( 1 + (-5.84 + 10.1i)T + (-36.5 - 63.2i)T^{2} \)
79 \( 1 + (3.64 - 6.30i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 - 16.1T + 83T^{2} \)
89 \( 1 + (5.59 + 9.68i)T + (-44.5 + 77.0i)T^{2} \)
97 \( 1 + (4.47 - 7.74i)T + (-48.5 - 84.0i)T^{2} \)
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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

−9.795599398182794145951756504133, −9.273464768267904948348687218387, −8.432329756053513149139103519851, −7.45766149151985978506223623995, −6.73683663503960833758806165859, −6.29381724386648942745011043115, −5.16390294392428605596036784719, −3.64017669374189402394082481084, −2.80439026329447324294715082890, −0.39852981449867884139451983067, 1.18952729947721035808654563353, 2.44929417477002821130608798328, 3.60288368889574252253708432160, 4.40045393701860841962282202820, 6.13241492539721958599381545759, 6.56189300561636838772418075812, 7.888693424869563504207452315158, 8.986723378975103725582654984680, 9.546889290770351508288024942606, 9.884492681305814359633354365160

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