Properties

Label 2-3e4-81.7-c1-0-1
Degree $2$
Conductor $81$
Sign $-0.145 - 0.989i$
Analytic cond. $0.646788$
Root an. cond. $0.804231$
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  + (1.55 + 2.09i)2-s + (−1.63 − 0.572i)3-s + (−1.37 + 4.59i)4-s + (−0.270 + 0.178i)5-s + (−1.34 − 4.31i)6-s + (2.64 − 2.80i)7-s + (−6.85 + 2.49i)8-s + (2.34 + 1.87i)9-s + (−0.794 − 0.289i)10-s + (1.12 − 0.565i)11-s + (4.88 − 6.72i)12-s + (−1.55 − 3.61i)13-s + (9.98 + 1.16i)14-s + (0.544 − 0.136i)15-s + (−7.87 − 5.18i)16-s + (−3.68 + 3.09i)17-s + ⋯
L(s)  = 1  + (1.10 + 1.47i)2-s + (−0.943 − 0.330i)3-s + (−0.688 + 2.29i)4-s + (−0.121 + 0.0796i)5-s + (−0.550 − 1.75i)6-s + (0.999 − 1.05i)7-s + (−2.42 + 0.882i)8-s + (0.781 + 0.623i)9-s + (−0.251 − 0.0914i)10-s + (0.339 − 0.170i)11-s + (1.40 − 1.94i)12-s + (−0.432 − 1.00i)13-s + (2.66 + 0.311i)14-s + (0.140 − 0.0351i)15-s + (−1.96 − 1.29i)16-s + (−0.894 + 0.750i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.145 - 0.989i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.145 - 0.989i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(81\)    =    \(3^{4}\)
Sign: $-0.145 - 0.989i$
Analytic conductor: \(0.646788\)
Root analytic conductor: \(0.804231\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{81} (7, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 81,\ (\ :1/2),\ -0.145 - 0.989i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.801313 + 0.927964i\)
\(L(\frac12)\) \(\approx\) \(0.801313 + 0.927964i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 + (1.63 + 0.572i)T \)
good2 \( 1 + (-1.55 - 2.09i)T + (-0.573 + 1.91i)T^{2} \)
5 \( 1 + (0.270 - 0.178i)T + (1.98 - 4.59i)T^{2} \)
7 \( 1 + (-2.64 + 2.80i)T + (-0.407 - 6.98i)T^{2} \)
11 \( 1 + (-1.12 + 0.565i)T + (6.56 - 8.82i)T^{2} \)
13 \( 1 + (1.55 + 3.61i)T + (-8.92 + 9.45i)T^{2} \)
17 \( 1 + (3.68 - 3.09i)T + (2.95 - 16.7i)T^{2} \)
19 \( 1 + (3.47 + 2.91i)T + (3.29 + 18.7i)T^{2} \)
23 \( 1 + (-0.385 - 0.408i)T + (-1.33 + 22.9i)T^{2} \)
29 \( 1 + (-2.11 + 0.247i)T + (28.2 - 6.68i)T^{2} \)
31 \( 1 + (-3.69 + 0.876i)T + (27.7 - 13.9i)T^{2} \)
37 \( 1 + (0.248 + 1.40i)T + (-34.7 + 12.6i)T^{2} \)
41 \( 1 + (5.63 - 7.57i)T + (-11.7 - 39.2i)T^{2} \)
43 \( 1 + (-0.210 + 3.61i)T + (-42.7 - 4.99i)T^{2} \)
47 \( 1 + (-3.70 - 0.877i)T + (42.0 + 21.0i)T^{2} \)
53 \( 1 + (3.57 + 6.18i)T + (-26.5 + 45.8i)T^{2} \)
59 \( 1 + (-5.22 - 2.62i)T + (35.2 + 47.3i)T^{2} \)
61 \( 1 + (-2.64 - 8.84i)T + (-50.9 + 33.5i)T^{2} \)
67 \( 1 + (0.214 + 0.0250i)T + (65.1 + 15.4i)T^{2} \)
71 \( 1 + (11.2 + 4.07i)T + (54.3 + 45.6i)T^{2} \)
73 \( 1 + (-7.37 + 2.68i)T + (55.9 - 46.9i)T^{2} \)
79 \( 1 + (-4.98 - 6.69i)T + (-22.6 + 75.6i)T^{2} \)
83 \( 1 + (-0.396 - 0.531i)T + (-23.8 + 79.5i)T^{2} \)
89 \( 1 + (-1.56 + 0.571i)T + (68.1 - 57.2i)T^{2} \)
97 \( 1 + (-13.4 - 8.85i)T + (38.4 + 89.0i)T^{2} \)
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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

−14.79801513675467149234641464032, −13.55922782299653674937410217588, −12.98170728687398709459793036691, −11.70391995094688313227518375682, −10.62283287198658891718786055532, −8.276237085663194310265531560349, −7.35559177677727032869374150120, −6.41766775713709532360634485052, −5.11778809616454163586768821341, −4.17474355401020573295843001920, 2.06542690432077585101605575920, 4.28763100674070514094255392205, 5.03408566557740097195217131327, 6.35353553758190530335487776804, 8.960233728451929133934411805963, 10.15889359292295289363194565316, 11.28559161706615654850595200267, 11.88140029814269186058577053588, 12.45954692415632925800498509221, 13.93395413430517153843726750611

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