Properties

Label 2-2646-21.20-c1-0-34
Degree $2$
Conductor $2646$
Sign $0.912 + 0.409i$
Analytic cond. $21.1284$
Root an. cond. $4.59656$
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  + i·2-s − 4-s − 0.115·5-s i·8-s − 0.115i·10-s + 3.52i·11-s − 2.01i·13-s + 16-s + 2.44·17-s − 5.10i·19-s + 0.115·20-s − 3.52·22-s − 5.73i·23-s − 4.98·25-s + 2.01·26-s + ⋯
L(s)  = 1  + 0.707i·2-s − 0.5·4-s − 0.0517·5-s − 0.353i·8-s − 0.0365i·10-s + 1.06i·11-s − 0.557i·13-s + 0.250·16-s + 0.594·17-s − 1.17i·19-s + 0.0258·20-s − 0.751·22-s − 1.19i·23-s − 0.997·25-s + 0.394·26-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2646 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.912 + 0.409i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2646 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.912 + 0.409i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2646\)    =    \(2 \cdot 3^{3} \cdot 7^{2}\)
Sign: $0.912 + 0.409i$
Analytic conductor: \(21.1284\)
Root analytic conductor: \(4.59656\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{2646} (2645, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 2646,\ (\ :1/2),\ 0.912 + 0.409i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.284141332\)
\(L(\frac12)\) \(\approx\) \(1.284141332\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - iT \)
3 \( 1 \)
7 \( 1 \)
good5 \( 1 + 0.115T + 5T^{2} \)
11 \( 1 - 3.52iT - 11T^{2} \)
13 \( 1 + 2.01iT - 13T^{2} \)
17 \( 1 - 2.44T + 17T^{2} \)
19 \( 1 + 5.10iT - 19T^{2} \)
23 \( 1 + 5.73iT - 23T^{2} \)
29 \( 1 + 4.48iT - 29T^{2} \)
31 \( 1 + 1.03iT - 31T^{2} \)
37 \( 1 - 4.69T + 37T^{2} \)
41 \( 1 + 4.06T + 41T^{2} \)
43 \( 1 + 6.70T + 43T^{2} \)
47 \( 1 + 2.96T + 47T^{2} \)
53 \( 1 - 9.17iT - 53T^{2} \)
59 \( 1 - 10.3T + 59T^{2} \)
61 \( 1 + 2.73iT - 61T^{2} \)
67 \( 1 + 2.54T + 67T^{2} \)
71 \( 1 + 5.12iT - 71T^{2} \)
73 \( 1 + 7.60iT - 73T^{2} \)
79 \( 1 + 4.88T + 79T^{2} \)
83 \( 1 - 17.9T + 83T^{2} \)
89 \( 1 - 10.0T + 89T^{2} \)
97 \( 1 + 12.2iT - 97T^{2} \)
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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

−8.656256082031946636767256138763, −7.939968133540248723428524212049, −7.32328562759614440879532556288, −6.55820398894183316153696279396, −5.80541323823095249454138541479, −4.86174256875075729053402438600, −4.31248349157510695528623689249, −3.15186325093280909511067557649, −2.04972700747739280179827306414, −0.47156665946052197959466610329, 1.13143247279278337504857166906, 2.10669983750499021186481286866, 3.47122856692315208708039974270, 3.69026142469652912070725290395, 5.01412001608376159297325315632, 5.68933506291116090496447485817, 6.51284422573863413226270461018, 7.61284946269107612091030631535, 8.242745659264991433541617634684, 8.964380954166193761550833082391

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