Properties

Label 2-55-55.18-c1-0-2
Degree $2$
Conductor $55$
Sign $0.922 + 0.386i$
Analytic cond. $0.439177$
Root an. cond. $0.662704$
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  + (−0.0763 − 0.482i)2-s + (−1.01 + 0.517i)3-s + (1.67 − 0.544i)4-s + (1.47 − 1.67i)5-s + (0.327 + 0.450i)6-s + (−1.32 + 2.59i)7-s + (−0.833 − 1.63i)8-s + (−1.00 + 1.37i)9-s + (−0.922 − 0.583i)10-s + (−3.15 − 1.00i)11-s + (−1.41 + 1.41i)12-s + (−2.89 + 0.457i)13-s + (1.35 + 0.440i)14-s + (−0.630 + 2.46i)15-s + (2.12 − 1.54i)16-s + (5.20 + 0.824i)17-s + ⋯
L(s)  = 1  + (−0.0540 − 0.341i)2-s + (−0.586 + 0.298i)3-s + (0.837 − 0.272i)4-s + (0.660 − 0.750i)5-s + (0.133 + 0.183i)6-s + (−0.500 + 0.982i)7-s + (−0.294 − 0.578i)8-s + (−0.333 + 0.458i)9-s + (−0.291 − 0.184i)10-s + (−0.952 − 0.303i)11-s + (−0.409 + 0.409i)12-s + (−0.801 + 0.126i)13-s + (0.362 + 0.117i)14-s + (−0.162 + 0.637i)15-s + (0.531 − 0.385i)16-s + (1.26 + 0.199i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 55 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.922 + 0.386i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 55 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.922 + 0.386i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(55\)    =    \(5 \cdot 11\)
Sign: $0.922 + 0.386i$
Analytic conductor: \(0.439177\)
Root analytic conductor: \(0.662704\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{55} (18, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 55,\ (\ :1/2),\ 0.922 + 0.386i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.808898 - 0.162501i\)
\(L(\frac12)\) \(\approx\) \(0.808898 - 0.162501i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad5 \( 1 + (-1.47 + 1.67i)T \)
11 \( 1 + (3.15 + 1.00i)T \)
good2 \( 1 + (0.0763 + 0.482i)T + (-1.90 + 0.618i)T^{2} \)
3 \( 1 + (1.01 - 0.517i)T + (1.76 - 2.42i)T^{2} \)
7 \( 1 + (1.32 - 2.59i)T + (-4.11 - 5.66i)T^{2} \)
13 \( 1 + (2.89 - 0.457i)T + (12.3 - 4.01i)T^{2} \)
17 \( 1 + (-5.20 - 0.824i)T + (16.1 + 5.25i)T^{2} \)
19 \( 1 + (1.26 - 3.89i)T + (-15.3 - 11.1i)T^{2} \)
23 \( 1 + (2.12 + 2.12i)T + 23iT^{2} \)
29 \( 1 + (0.817 + 2.51i)T + (-23.4 + 17.0i)T^{2} \)
31 \( 1 + (-5.45 - 3.96i)T + (9.57 + 29.4i)T^{2} \)
37 \( 1 + (-1.03 - 0.528i)T + (21.7 + 29.9i)T^{2} \)
41 \( 1 + (3.38 + 1.09i)T + (33.1 + 24.0i)T^{2} \)
43 \( 1 + (-5.07 + 5.07i)T - 43iT^{2} \)
47 \( 1 + (-1.67 - 3.28i)T + (-27.6 + 38.0i)T^{2} \)
53 \( 1 + (0.231 + 1.45i)T + (-50.4 + 16.3i)T^{2} \)
59 \( 1 + (-1.52 + 0.496i)T + (47.7 - 34.6i)T^{2} \)
61 \( 1 + (4.07 + 5.61i)T + (-18.8 + 58.0i)T^{2} \)
67 \( 1 + (-1.31 + 1.31i)T - 67iT^{2} \)
71 \( 1 + (2.32 - 1.68i)T + (21.9 - 67.5i)T^{2} \)
73 \( 1 + (-13.1 - 6.71i)T + (42.9 + 59.0i)T^{2} \)
79 \( 1 + (12.3 + 8.96i)T + (24.4 + 75.1i)T^{2} \)
83 \( 1 + (1.04 - 6.60i)T + (-78.9 - 25.6i)T^{2} \)
89 \( 1 - 11.1iT - 89T^{2} \)
97 \( 1 + (9.94 - 1.57i)T + (92.2 - 29.9i)T^{2} \)
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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

−15.58277568994631727824305075090, −14.15893607534245347908240112438, −12.54990291665148342613343439403, −12.00407844214981687080053356005, −10.50449462914034199524372451343, −9.781490981092751113106528492603, −8.128712986140020156192546319857, −6.05772449389515383177921616766, −5.32658686580482178258906802945, −2.48541596424522685325158092750, 2.91867118039357268412270919164, 5.65392656480380699789271697872, 6.80631181470709237066262699731, 7.60323098552189778215801356610, 9.841705343875240920107397713405, 10.77993266581096415608740489323, 11.94152306563603798569516178674, 13.12033998132205128081335120750, 14.42069015395907529765828125579, 15.43675659763463737610677871224

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