Properties

Label 2-3e4-3.2-c4-0-3
Degree $2$
Conductor $81$
Sign $-1$
Analytic cond. $8.37296$
Root an. cond. $2.89360$
Motivic weight $4$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 5.33i·2-s − 12.4·4-s + 39.7i·5-s + 65.7·7-s + 18.7i·8-s − 212.·10-s − 38.0i·11-s − 240.·13-s + 350. i·14-s − 299.·16-s − 151. i·17-s + 313.·19-s − 496. i·20-s + 202.·22-s + 327. i·23-s + ⋯
L(s)  = 1  + 1.33i·2-s − 0.780·4-s + 1.59i·5-s + 1.34·7-s + 0.293i·8-s − 2.12·10-s − 0.314i·11-s − 1.42·13-s + 1.78i·14-s − 1.17·16-s − 0.525i·17-s + 0.867·19-s − 1.24i·20-s + 0.419·22-s + 0.618i·23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(81\)    =    \(3^{4}\)
Sign: $-1$
Analytic conductor: \(8.37296\)
Root analytic conductor: \(2.89360\)
Motivic weight: \(4\)
Rational: no
Arithmetic: yes
Character: $\chi_{81} (80, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 81,\ (\ :2),\ -1)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(-1.70677i\)
\(L(\frac12)\) \(\approx\) \(-1.70677i\)
\(L(3)\) 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 \( 1 - 5.33iT - 16T^{2} \)
5 \( 1 - 39.7iT - 625T^{2} \)
7 \( 1 - 65.7T + 2.40e3T^{2} \)
11 \( 1 + 38.0iT - 1.46e4T^{2} \)
13 \( 1 + 240.T + 2.85e4T^{2} \)
17 \( 1 + 151. iT - 8.35e4T^{2} \)
19 \( 1 - 313.T + 1.30e5T^{2} \)
23 \( 1 - 327. iT - 2.79e5T^{2} \)
29 \( 1 + 484. iT - 7.07e5T^{2} \)
31 \( 1 - 82.5T + 9.23e5T^{2} \)
37 \( 1 - 1.78e3T + 1.87e6T^{2} \)
41 \( 1 - 1.68e3iT - 2.82e6T^{2} \)
43 \( 1 - 2.88e3T + 3.41e6T^{2} \)
47 \( 1 - 2.75e3iT - 4.87e6T^{2} \)
53 \( 1 + 540. iT - 7.89e6T^{2} \)
59 \( 1 + 882. iT - 1.21e7T^{2} \)
61 \( 1 + 2.30e3T + 1.38e7T^{2} \)
67 \( 1 + 1.95e3T + 2.01e7T^{2} \)
71 \( 1 - 1.73e3iT - 2.54e7T^{2} \)
73 \( 1 - 4.97e3T + 2.83e7T^{2} \)
79 \( 1 - 6.06e3T + 3.89e7T^{2} \)
83 \( 1 + 1.27e4iT - 4.74e7T^{2} \)
89 \( 1 + 1.37e3iT - 6.27e7T^{2} \)
97 \( 1 - 8.04e3T + 8.85e7T^{2} \)
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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

−14.51808691039735934599085113789, −13.81378129045460410843865889856, −11.69566469333759163697880984789, −11.01350962532666030562469666255, −9.552469549726037079928970086200, −7.75678155181317026038775698675, −7.43292661217934052072340651471, −6.09652593640140970843979347546, −4.81861013138496693311279922383, −2.58256876055116915801654934688, 0.896130973212881351912478947986, 2.12576082865448260325058197383, 4.31968377378771400497967575968, 5.15302440268714971060667593008, 7.60532288508656407865824291196, 8.843913835022245574351503245541, 9.828513964629986537960759472598, 11.07239553953431048938643797016, 12.19135810565096422239732666555, 12.50624831464449368923981311574

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