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Properties

Label 2-21e2-21.17-c3-0-0
Degree $2$
Conductor $441$
Sign $-0.995 - 0.0976i$
Analytic cond. $26.0198$
Root an. cond. $5.10096$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (1.40 − 0.810i)2-s + (−2.68 + 4.65i)4-s + (2.35 + 4.08i)5-s + 21.6i·8-s + (6.62 + 3.82i)10-s + (−25.9 − 14.9i)11-s + 27.1i·13-s + (−3.92 − 6.80i)16-s + (8.92 − 15.4i)17-s + (−107. + 61.9i)19-s − 25.3·20-s − 48.6·22-s + (71.0 − 41.0i)23-s + (51.3 − 88.9i)25-s + (22.0 + 38.1i)26-s + ⋯
L(s)  = 1  + (0.496 − 0.286i)2-s + (−0.335 + 0.581i)4-s + (0.211 + 0.365i)5-s + 0.957i·8-s + (0.209 + 0.120i)10-s + (−0.712 − 0.411i)11-s + 0.579i·13-s + (−0.0613 − 0.106i)16-s + (0.127 − 0.220i)17-s + (−1.29 + 0.747i)19-s − 0.283·20-s − 0.471·22-s + (0.644 − 0.372i)23-s + (0.410 − 0.711i)25-s + (0.166 + 0.287i)26-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 441 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.995 - 0.0976i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 441 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.995 - 0.0976i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(441\)    =    \(3^{2} \cdot 7^{2}\)
Sign: $-0.995 - 0.0976i$
Analytic conductor: \(26.0198\)
Root analytic conductor: \(5.10096\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{441} (80, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 441,\ (\ :3/2),\ -0.995 - 0.0976i)\)

Particular Values

\(L(2)\) \(\approx\) \(0.5448804247\)
\(L(\frac12)\) \(\approx\) \(0.5448804247\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
7 \( 1 \)
good2 \( 1 + (-1.40 + 0.810i)T + (4 - 6.92i)T^{2} \)
5 \( 1 + (-2.35 - 4.08i)T + (-62.5 + 108. i)T^{2} \)
11 \( 1 + (25.9 + 14.9i)T + (665.5 + 1.15e3i)T^{2} \)
13 \( 1 - 27.1iT - 2.19e3T^{2} \)
17 \( 1 + (-8.92 + 15.4i)T + (-2.45e3 - 4.25e3i)T^{2} \)
19 \( 1 + (107. - 61.9i)T + (3.42e3 - 5.94e3i)T^{2} \)
23 \( 1 + (-71.0 + 41.0i)T + (6.08e3 - 1.05e4i)T^{2} \)
29 \( 1 - 88.2iT - 2.43e4T^{2} \)
31 \( 1 + (220. + 127. i)T + (1.48e4 + 2.57e4i)T^{2} \)
37 \( 1 + (107. + 186. i)T + (-2.53e4 + 4.38e4i)T^{2} \)
41 \( 1 + 427.T + 6.89e4T^{2} \)
43 \( 1 - 62.4T + 7.95e4T^{2} \)
47 \( 1 + (-211. - 366. i)T + (-5.19e4 + 8.99e4i)T^{2} \)
53 \( 1 + (587. + 339. i)T + (7.44e4 + 1.28e5i)T^{2} \)
59 \( 1 + (383. - 664. i)T + (-1.02e5 - 1.77e5i)T^{2} \)
61 \( 1 + (313. - 180. i)T + (1.13e5 - 1.96e5i)T^{2} \)
67 \( 1 + (-323. + 561. i)T + (-1.50e5 - 2.60e5i)T^{2} \)
71 \( 1 - 536. iT - 3.57e5T^{2} \)
73 \( 1 + (547. + 315. i)T + (1.94e5 + 3.36e5i)T^{2} \)
79 \( 1 + (-298. - 517. i)T + (-2.46e5 + 4.26e5i)T^{2} \)
83 \( 1 - 591.T + 5.71e5T^{2} \)
89 \( 1 + (-769. - 1.33e3i)T + (-3.52e5 + 6.10e5i)T^{2} \)
97 \( 1 + 654. iT - 9.12e5T^{2} \)
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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

−11.06798044393710673369061524955, −10.55439398873372222772674925440, −9.230484053869100758066463288270, −8.447689256133734085166730399616, −7.52568202806691032730478819710, −6.38296797499298229042773774421, −5.25941919338331258956071526367, −4.23859387486132771323732159070, −3.17433254390667170768837933167, −2.10237550619212721507462348011, 0.14155336752602372410048322477, 1.69167637101809772665767396240, 3.35470936791473504575420859271, 4.74747195363001331325763014200, 5.26537401283205185384177020315, 6.35057373141641764623423633550, 7.31154651419457688061679464366, 8.556011096138239071759769192622, 9.354069647551054863282253399394, 10.33681149329038284745161568793

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