Properties

Label 2-3e4-9.4-c9-0-27
Degree $2$
Conductor $81$
Sign $0.939 + 0.342i$
Analytic cond. $41.7179$
Root an. cond. $6.45893$
Motivic weight $9$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (11.2 + 19.4i)2-s + (4 − 6.92i)4-s + (−246. + 427. i)5-s + (381.5 + 660. i)7-s + 1.16e4·8-s − 1.10e4·10-s + (−2.84e4 − 4.92e4i)11-s + (3.65e4 − 6.32e4i)13-s + (−8.56e3 + 1.48e4i)14-s + (1.28e5 + 2.23e5i)16-s − 1.68e5·17-s − 5.98e5·19-s + (1.97e3 + 3.42e3i)20-s + (6.38e5 − 1.10e6i)22-s + (1.20e6 − 2.07e6i)23-s + ⋯
L(s)  = 1  + (0.496 + 0.859i)2-s + (0.00781 − 0.0135i)4-s + (−0.176 + 0.306i)5-s + (0.0600 + 0.104i)7-s + 1.00·8-s − 0.350·10-s + (−0.585 − 1.01i)11-s + (0.354 − 0.614i)13-s + (−0.0595 + 0.103i)14-s + (0.492 + 0.852i)16-s − 0.488·17-s − 1.05·19-s + (0.00276 + 0.00478i)20-s + (0.581 − 1.00i)22-s + (0.894 − 1.54i)23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.939 + 0.342i)\, \overline{\Lambda}(10-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s+9/2) \, L(s)\cr =\mathstrut & (0.939 + 0.342i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(81\)    =    \(3^{4}\)
Sign: $0.939 + 0.342i$
Analytic conductor: \(41.7179\)
Root analytic conductor: \(6.45893\)
Motivic weight: \(9\)
Rational: no
Arithmetic: yes
Character: $\chi_{81} (28, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 81,\ (\ :9/2),\ 0.939 + 0.342i)\)

Particular Values

\(L(5)\) \(\approx\) \(2.46407 - 0.434483i\)
\(L(\frac12)\) \(\approx\) \(2.46407 - 0.434483i\)
\(L(\frac{11}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
good2 \( 1 + (-11.2 - 19.4i)T + (-256 + 443. i)T^{2} \)
5 \( 1 + (246. - 427. i)T + (-9.76e5 - 1.69e6i)T^{2} \)
7 \( 1 + (-381.5 - 660. i)T + (-2.01e7 + 3.49e7i)T^{2} \)
11 \( 1 + (2.84e4 + 4.92e4i)T + (-1.17e9 + 2.04e9i)T^{2} \)
13 \( 1 + (-3.65e4 + 6.32e4i)T + (-5.30e9 - 9.18e9i)T^{2} \)
17 \( 1 + 1.68e5T + 1.18e11T^{2} \)
19 \( 1 + 5.98e5T + 3.22e11T^{2} \)
23 \( 1 + (-1.20e6 + 2.07e6i)T + (-9.00e11 - 1.55e12i)T^{2} \)
29 \( 1 + (2.32e6 + 4.03e6i)T + (-7.25e12 + 1.25e13i)T^{2} \)
31 \( 1 + (-9.12e5 + 1.57e6i)T + (-1.32e13 - 2.28e13i)T^{2} \)
37 \( 1 - 1.42e7T + 1.29e14T^{2} \)
41 \( 1 + (-1.49e7 + 2.58e7i)T + (-1.63e14 - 2.83e14i)T^{2} \)
43 \( 1 + (3.87e6 + 6.71e6i)T + (-2.51e14 + 4.35e14i)T^{2} \)
47 \( 1 + (-1.54e7 - 2.68e7i)T + (-5.59e14 + 9.69e14i)T^{2} \)
53 \( 1 + 9.90e6T + 3.29e15T^{2} \)
59 \( 1 + (6.26e7 - 1.08e8i)T + (-4.33e15 - 7.50e15i)T^{2} \)
61 \( 1 + (-7.63e7 - 1.32e8i)T + (-5.84e15 + 1.01e16i)T^{2} \)
67 \( 1 + (-1.60e8 + 2.77e8i)T + (-1.36e16 - 2.35e16i)T^{2} \)
71 \( 1 + 1.09e8T + 4.58e16T^{2} \)
73 \( 1 - 6.64e7T + 5.88e16T^{2} \)
79 \( 1 + (-5.76e7 - 9.99e7i)T + (-5.99e16 + 1.03e17i)T^{2} \)
83 \( 1 + (3.07e8 + 5.32e8i)T + (-9.34e16 + 1.61e17i)T^{2} \)
89 \( 1 - 3.37e8T + 3.50e17T^{2} \)
97 \( 1 + (-1.17e8 - 2.03e8i)T + (-3.80e17 + 6.58e17i)T^{2} \)
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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

−12.85264188810441078411855826583, −11.08298324085894133696416439044, −10.56185658764621842338796251082, −8.745738626880019683735560242230, −7.66606129347083113351472429584, −6.44576941109770765437618442481, −5.55615943962965122444971382350, −4.21002221682861906350523395200, −2.53915337452782874455703772061, −0.61110953830559006317461109041, 1.37742020021890269004177883361, 2.56226523617330613506608653449, 4.01865939153061404403754215523, 4.94483284613005454803747105552, 6.84152507584236518576777093750, 7.994990777228925649329172152978, 9.419233784689852049022165431333, 10.72169814282680978772770163201, 11.49337342841762021841551316147, 12.69342106973085515083187088764

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