Properties

Label 2-684-4.3-c2-0-8
Degree $2$
Conductor $684$
Sign $-0.611 - 0.791i$
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  + (−0.645 − 1.89i)2-s + (−3.16 + 2.44i)4-s + 2.38·5-s + 12.3i·7-s + (6.67 + 4.41i)8-s + (−1.53 − 4.50i)10-s + 9.15i·11-s + 0.940·13-s + (23.4 − 7.98i)14-s + (4.05 − 15.4i)16-s − 27.1·17-s − 4.35i·19-s + (−7.54 + 5.82i)20-s + (17.3 − 5.90i)22-s − 13.8i·23-s + ⋯
L(s)  = 1  + (−0.322 − 0.946i)2-s + (−0.791 + 0.611i)4-s + 0.476·5-s + 1.76i·7-s + (0.833 + 0.552i)8-s + (−0.153 − 0.450i)10-s + 0.831i·11-s + 0.0723·13-s + (1.67 − 0.570i)14-s + (0.253 − 0.967i)16-s − 1.59·17-s − 0.229i·19-s + (−0.377 + 0.291i)20-s + (0.787 − 0.268i)22-s − 0.600i·23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 684 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.611 - 0.791i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 684 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.611 - 0.791i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(684\)    =    \(2^{2} \cdot 3^{2} \cdot 19\)
Sign: $-0.611 - 0.791i$
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: \((2,\ 684,\ (\ :1),\ -0.611 - 0.791i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.4453992027\)
\(L(\frac12)\) \(\approx\) \(0.4453992027\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (0.645 + 1.89i)T \)
3 \( 1 \)
19 \( 1 + 4.35iT \)
good5 \( 1 - 2.38T + 25T^{2} \)
7 \( 1 - 12.3iT - 49T^{2} \)
11 \( 1 - 9.15iT - 121T^{2} \)
13 \( 1 - 0.940T + 169T^{2} \)
17 \( 1 + 27.1T + 289T^{2} \)
23 \( 1 + 13.8iT - 529T^{2} \)
29 \( 1 + 49.8T + 841T^{2} \)
31 \( 1 + 24.6iT - 961T^{2} \)
37 \( 1 + 27.3T + 1.36e3T^{2} \)
41 \( 1 - 38.4T + 1.68e3T^{2} \)
43 \( 1 + 41.2iT - 1.84e3T^{2} \)
47 \( 1 + 45.1iT - 2.20e3T^{2} \)
53 \( 1 - 19.9T + 2.80e3T^{2} \)
59 \( 1 - 34.7iT - 3.48e3T^{2} \)
61 \( 1 - 33.2T + 3.72e3T^{2} \)
67 \( 1 - 3.48iT - 4.48e3T^{2} \)
71 \( 1 - 88.8iT - 5.04e3T^{2} \)
73 \( 1 + 19.8T + 5.32e3T^{2} \)
79 \( 1 + 51.7iT - 6.24e3T^{2} \)
83 \( 1 - 6.62iT - 6.88e3T^{2} \)
89 \( 1 + 31.5T + 7.92e3T^{2} \)
97 \( 1 - 159.T + 9.40e3T^{2} \)
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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

−10.59361203491361825375235247954, −9.563105907504906942605455223530, −9.089168122380135456189152902466, −8.417204579711282300387414645123, −7.19156326304678072960576859178, −5.92837466260221534180721864453, −5.06206579033477147271337260167, −3.94224502880493510807032175733, −2.33645040958249264977419021739, −2.09250196310594999724413324499, 0.17233094655408973739994677113, 1.53827273205299578867579758316, 3.65728423823541177081664628020, 4.48489727622649815152436207495, 5.66348325461546631702918848511, 6.54416334958034367177295638076, 7.30289114528946010034003938820, 8.065855645230273316487544213661, 9.110015078584479016952295065742, 9.800214434541318682313500357171

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