Properties

Label 2-684-4.3-c2-0-16
Degree $2$
Conductor $684$
Sign $0.721 - 0.692i$
Analytic cond. $18.6376$
Root an. cond. $4.31713$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−1.83 − 0.784i)2-s + (2.76 + 2.88i)4-s − 6.85·5-s − 3.48i·7-s + (−2.82 − 7.48i)8-s + (12.6 + 5.37i)10-s − 1.50i·11-s + 0.937·13-s + (−2.73 + 6.40i)14-s + (−0.666 + 15.9i)16-s − 17.5·17-s − 4.35i·19-s + (−18.9 − 19.7i)20-s + (−1.18 + 2.76i)22-s − 9.27i·23-s + ⋯
L(s)  = 1  + (−0.919 − 0.392i)2-s + (0.692 + 0.721i)4-s − 1.37·5-s − 0.497i·7-s + (−0.353 − 0.935i)8-s + (1.26 + 0.537i)10-s − 0.136i·11-s + 0.0721·13-s + (−0.195 + 0.457i)14-s + (−0.0416 + 0.999i)16-s − 1.03·17-s − 0.229i·19-s + (−0.949 − 0.989i)20-s + (−0.0536 + 0.125i)22-s − 0.403i·23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 684 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.721 - 0.692i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 684 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (0.721 - 0.692i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(684\)    =    \(2^{2} \cdot 3^{2} \cdot 19\)
Sign: $0.721 - 0.692i$
Analytic conductor: \(18.6376\)
Root analytic conductor: \(4.31713\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{684} (343, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 684,\ (\ :1),\ 0.721 - 0.692i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.4991768145\)
\(L(\frac12)\) \(\approx\) \(0.4991768145\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (1.83 + 0.784i)T \)
3 \( 1 \)
19 \( 1 + 4.35iT \)
good5 \( 1 + 6.85T + 25T^{2} \)
7 \( 1 + 3.48iT - 49T^{2} \)
11 \( 1 + 1.50iT - 121T^{2} \)
13 \( 1 - 0.937T + 169T^{2} \)
17 \( 1 + 17.5T + 289T^{2} \)
23 \( 1 + 9.27iT - 529T^{2} \)
29 \( 1 + 4.00T + 841T^{2} \)
31 \( 1 + 21.0iT - 961T^{2} \)
37 \( 1 + 13.0T + 1.36e3T^{2} \)
41 \( 1 - 30.0T + 1.68e3T^{2} \)
43 \( 1 - 50.7iT - 1.84e3T^{2} \)
47 \( 1 - 74.1iT - 2.20e3T^{2} \)
53 \( 1 - 18.4T + 2.80e3T^{2} \)
59 \( 1 - 13.0iT - 3.48e3T^{2} \)
61 \( 1 - 12.7T + 3.72e3T^{2} \)
67 \( 1 - 48.1iT - 4.48e3T^{2} \)
71 \( 1 + 20.6iT - 5.04e3T^{2} \)
73 \( 1 + 53.9T + 5.32e3T^{2} \)
79 \( 1 - 111. iT - 6.24e3T^{2} \)
83 \( 1 - 107. iT - 6.88e3T^{2} \)
89 \( 1 - 136.T + 7.92e3T^{2} \)
97 \( 1 - 70.1T + 9.40e3T^{2} \)
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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

−10.55441962558437707292834504315, −9.444457635393523105056732659456, −8.628802601531516757566032389167, −7.83920548727797377020956810481, −7.22772850761415529412579122397, −6.27742606627043117701039113851, −4.47778337021880250634323002003, −3.75138924264469409232766005300, −2.55257698118935121341093049887, −0.846550121257065103084175301757, 0.33930781253130400949208044174, 2.06227189854417163336839955159, 3.49106723339765048556847843169, 4.74010809285449007390382668444, 5.86683899754731624608671255533, 6.98176816861392813239587824053, 7.56463753187573880123121702539, 8.568916049565407040882883836671, 8.955614097339826229319077148111, 10.16953382290189970303313009590

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