Properties

Label 2-684-4.3-c2-0-64
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

\(L(\frac{3}{2})\) \(\approx\) \(4.257535793\)
\(L(\frac12)\) \(\approx\) \(4.257535793\)
\(L(2)\) 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

−10.32296200170985324272978142402, −9.701753887467573955681134222608, −8.535187264115404273658645930289, −7.50061904401824161818617778377, −6.66182940864445419716005594956, −5.77985248990155191505953234271, −5.13238023693426549565899750516, −3.92660143544946143724279288846, −2.76403009769737074210092980858, −1.56824195663550550773485143890, 1.36036082270667920671710120551, 2.39509524604027912669075015749, 3.41280944909639407248641774802, 4.82566762824663334447020597510, 5.66294239909892883235900493445, 6.18992194545025875887039135829, 7.25280340485443633178660605421, 8.627333715619884116180254081405, 9.621043977087976408955979617449, 10.22285741728347135510970629708

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