Properties

Label 2-3e4-81.31-c1-0-2
Degree $2$
Conductor $81$
Sign $0.517 + 0.855i$
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  + (−0.685 − 1.58i)2-s + (0.844 + 1.51i)3-s + (−0.684 + 0.725i)4-s + (0.0800 − 1.37i)5-s + (1.82 − 2.37i)6-s + (3.19 − 0.758i)7-s + (−1.63 − 0.593i)8-s + (−1.57 + 2.55i)9-s + (−2.24 + 0.815i)10-s + (0.171 − 0.112i)11-s + (−1.67 − 0.422i)12-s + (−5.21 + 0.610i)13-s + (−3.39 − 4.56i)14-s + (2.14 − 1.03i)15-s + (0.290 + 4.99i)16-s + (3.88 + 3.26i)17-s + ⋯
L(s)  = 1  + (−0.484 − 1.12i)2-s + (0.487 + 0.873i)3-s + (−0.342 + 0.362i)4-s + (0.0358 − 0.614i)5-s + (0.745 − 0.971i)6-s + (1.20 − 0.286i)7-s + (−0.576 − 0.209i)8-s + (−0.524 + 0.851i)9-s + (−0.708 + 0.257i)10-s + (0.0517 − 0.0340i)11-s + (−0.483 − 0.121i)12-s + (−1.44 + 0.169i)13-s + (−0.908 − 1.22i)14-s + (0.554 − 0.268i)15-s + (0.0726 + 1.24i)16-s + (0.942 + 0.791i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.517 + 0.855i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.517 + 0.855i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(81\)    =    \(3^{4}\)
Sign: $0.517 + 0.855i$
Analytic conductor: \(0.646788\)
Root analytic conductor: \(0.804231\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{81} (31, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 81,\ (\ :1/2),\ 0.517 + 0.855i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.792303 - 0.446664i\)
\(L(\frac12)\) \(\approx\) \(0.792303 - 0.446664i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 + (-0.844 - 1.51i)T \)
good2 \( 1 + (0.685 + 1.58i)T + (-1.37 + 1.45i)T^{2} \)
5 \( 1 + (-0.0800 + 1.37i)T + (-4.96 - 0.580i)T^{2} \)
7 \( 1 + (-3.19 + 0.758i)T + (6.25 - 3.14i)T^{2} \)
11 \( 1 + (-0.171 + 0.112i)T + (4.35 - 10.1i)T^{2} \)
13 \( 1 + (5.21 - 0.610i)T + (12.6 - 2.99i)T^{2} \)
17 \( 1 + (-3.88 - 3.26i)T + (2.95 + 16.7i)T^{2} \)
19 \( 1 + (2.25 - 1.88i)T + (3.29 - 18.7i)T^{2} \)
23 \( 1 + (3.66 + 0.867i)T + (20.5 + 10.3i)T^{2} \)
29 \( 1 + (3.76 - 5.05i)T + (-8.31 - 27.7i)T^{2} \)
31 \( 1 + (1.45 + 4.86i)T + (-25.9 + 17.0i)T^{2} \)
37 \( 1 + (-1.44 + 8.19i)T + (-34.7 - 12.6i)T^{2} \)
41 \( 1 + (1.09 - 2.53i)T + (-28.1 - 29.8i)T^{2} \)
43 \( 1 + (1.41 + 0.712i)T + (25.6 + 34.4i)T^{2} \)
47 \( 1 + (-0.596 + 1.99i)T + (-39.2 - 25.8i)T^{2} \)
53 \( 1 + (-4.51 + 7.82i)T + (-26.5 - 45.8i)T^{2} \)
59 \( 1 + (-12.4 - 8.15i)T + (23.3 + 54.1i)T^{2} \)
61 \( 1 + (-1.03 - 1.09i)T + (-3.54 + 60.8i)T^{2} \)
67 \( 1 + (8.00 + 10.7i)T + (-19.2 + 64.1i)T^{2} \)
71 \( 1 + (-4.39 + 1.59i)T + (54.3 - 45.6i)T^{2} \)
73 \( 1 + (-15.3 - 5.56i)T + (55.9 + 46.9i)T^{2} \)
79 \( 1 + (0.588 + 1.36i)T + (-54.2 + 57.4i)T^{2} \)
83 \( 1 + (5.64 + 13.0i)T + (-56.9 + 60.3i)T^{2} \)
89 \( 1 + (4.83 + 1.75i)T + (68.1 + 57.2i)T^{2} \)
97 \( 1 + (-0.104 - 1.79i)T + (-96.3 + 11.2i)T^{2} \)
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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

−14.53458172345081895874484723077, −12.79459415084425983091728082633, −11.77913664534398246618467814628, −10.71934085890177500965271870313, −9.932490482577965094985389341222, −8.881439586641900472400926314392, −7.84983937197080177225573352789, −5.30568391255568530855787326727, −3.95281083076201477292719855829, −2.04419744164932970852929470195, 2.59302461954323681844956235086, 5.33573838181312326347458291348, 6.80805311331549717070023914489, 7.61343386712990279813043126889, 8.399036635831916131515059076427, 9.703341520031661151886421792954, 11.52025562688008663133321903582, 12.32430465451424339492459569538, 14.01616277054094116089620760663, 14.67401762037268771886757008717

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