Properties

Label 2-3e3-3.2-c8-0-2
Degree $2$
Conductor $27$
Sign $-i$
Analytic cond. $10.9992$
Root an. cond. $3.31650$
Motivic weight $8$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 7.92i·2-s + 193.·4-s + 799. i·5-s − 4.07e3·7-s − 3.55e3i·8-s + 6.33e3·10-s + 2.49e4i·11-s − 1.35e4·13-s + 3.22e4i·14-s + 2.12e4·16-s + 1.00e5i·17-s + 1.84e4·19-s + 1.54e5i·20-s + 1.97e5·22-s − 1.93e4i·23-s + ⋯
L(s)  = 1  − 0.495i·2-s + 0.754·4-s + 1.27i·5-s − 1.69·7-s − 0.868i·8-s + 0.633·10-s + 1.70i·11-s − 0.475·13-s + 0.839i·14-s + 0.324·16-s + 1.20i·17-s + 0.141·19-s + 0.965i·20-s + 0.844·22-s − 0.0693i·23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 27 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -i\, \overline{\Lambda}(9-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 27 ^{s/2} \, \Gamma_{\C}(s+4) \, L(s)\cr =\mathstrut & -i\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(27\)    =    \(3^{3}\)
Sign: $-i$
Analytic conductor: \(10.9992\)
Root analytic conductor: \(3.31650\)
Motivic weight: \(8\)
Rational: no
Arithmetic: yes
Character: $\chi_{27} (26, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 27,\ (\ :4),\ -i)\)

Particular Values

\(L(\frac{9}{2})\) \(\approx\) \(0.910414 + 0.910414i\)
\(L(\frac12)\) \(\approx\) \(0.910414 + 0.910414i\)
\(L(5)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
good2 \( 1 + 7.92iT - 256T^{2} \)
5 \( 1 - 799. iT - 3.90e5T^{2} \)
7 \( 1 + 4.07e3T + 5.76e6T^{2} \)
11 \( 1 - 2.49e4iT - 2.14e8T^{2} \)
13 \( 1 + 1.35e4T + 8.15e8T^{2} \)
17 \( 1 - 1.00e5iT - 6.97e9T^{2} \)
19 \( 1 - 1.84e4T + 1.69e10T^{2} \)
23 \( 1 + 1.93e4iT - 7.83e10T^{2} \)
29 \( 1 - 1.47e5iT - 5.00e11T^{2} \)
31 \( 1 - 5.37e5T + 8.52e11T^{2} \)
37 \( 1 + 5.39e5T + 3.51e12T^{2} \)
41 \( 1 - 1.55e5iT - 7.98e12T^{2} \)
43 \( 1 + 5.25e6T + 1.16e13T^{2} \)
47 \( 1 + 6.53e6iT - 2.38e13T^{2} \)
53 \( 1 - 6.49e6iT - 6.22e13T^{2} \)
59 \( 1 - 1.01e7iT - 1.46e14T^{2} \)
61 \( 1 - 1.22e7T + 1.91e14T^{2} \)
67 \( 1 - 3.31e7T + 4.06e14T^{2} \)
71 \( 1 + 2.04e7iT - 6.45e14T^{2} \)
73 \( 1 - 1.03e7T + 8.06e14T^{2} \)
79 \( 1 + 2.57e7T + 1.51e15T^{2} \)
83 \( 1 + 2.24e7iT - 2.25e15T^{2} \)
89 \( 1 + 7.34e6iT - 3.93e15T^{2} \)
97 \( 1 + 1.55e7T + 7.83e15T^{2} \)
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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

−15.57038127623494284336410199660, −14.86689615251513833842648560230, −12.97176662638751143059952565962, −12.03996669448772500361077522582, −10.39231898923632552960627442282, −9.884686608877118018433402167695, −7.14689420751090607999344774267, −6.46636129956545820453459482664, −3.50888980550534771018977753200, −2.27782006791329821099902405150, 0.54380496581751825762763512830, 3.06107427372173169401568124509, 5.44745219318776670244609837793, 6.68890569235072867745797694521, 8.396280138056249006489336408612, 9.688482052814087073861334306572, 11.50501654581518552568050453048, 12.72817817518091052957708776414, 13.86083854890463191766173981154, 15.80732808600673294204719113518

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