Properties

Label 2-21e2-1.1-c7-0-31
Degree $2$
Conductor $441$
Sign $1$
Analytic cond. $137.761$
Root an. cond. $11.7371$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 10·2-s − 28·4-s − 472.·5-s + 1.56e3·8-s + 4.72e3·10-s + 4.74e3·11-s + 3.30e3·13-s − 1.20e4·16-s + 3.49e4·17-s − 2.60e4·19-s + 1.32e4·20-s − 4.74e4·22-s + 7.55e4·23-s + 1.45e5·25-s − 3.30e4·26-s + 1.09e5·29-s + 4.72e3·31-s − 7.95e4·32-s − 3.49e5·34-s + 1.99e5·37-s + 2.60e5·38-s − 7.37e5·40-s − 4.96e5·41-s − 4.19e5·43-s − 1.32e5·44-s − 7.55e5·46-s − 2.22e5·47-s + ⋯
L(s)  = 1  − 0.883·2-s − 0.218·4-s − 1.69·5-s + 1.07·8-s + 1.49·10-s + 1.07·11-s + 0.417·13-s − 0.733·16-s + 1.72·17-s − 0.869·19-s + 0.370·20-s − 0.950·22-s + 1.29·23-s + 1.86·25-s − 0.369·26-s + 0.832·29-s + 0.0285·31-s − 0.428·32-s − 1.52·34-s + 0.647·37-s + 0.768·38-s − 1.82·40-s − 1.12·41-s − 0.804·43-s − 0.235·44-s − 1.14·46-s − 0.312·47-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 441 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 441 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(441\)    =    \(3^{2} \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(137.761\)
Root analytic conductor: \(11.7371\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 441,\ (\ :7/2),\ 1)\)

Particular Values

\(L(4)\) \(\approx\) \(0.9177977543\)
\(L(\frac12)\) \(\approx\) \(0.9177977543\)
\(L(\frac{9}{2})\) 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 \( 1 + 10T + 128T^{2} \)
5 \( 1 + 472.T + 7.81e4T^{2} \)
11 \( 1 - 4.74e3T + 1.94e7T^{2} \)
13 \( 1 - 3.30e3T + 6.27e7T^{2} \)
17 \( 1 - 3.49e4T + 4.10e8T^{2} \)
19 \( 1 + 2.60e4T + 8.93e8T^{2} \)
23 \( 1 - 7.55e4T + 3.40e9T^{2} \)
29 \( 1 - 1.09e5T + 1.72e10T^{2} \)
31 \( 1 - 4.72e3T + 2.75e10T^{2} \)
37 \( 1 - 1.99e5T + 9.49e10T^{2} \)
41 \( 1 + 4.96e5T + 1.94e11T^{2} \)
43 \( 1 + 4.19e5T + 2.71e11T^{2} \)
47 \( 1 + 2.22e5T + 5.06e11T^{2} \)
53 \( 1 - 4.66e5T + 1.17e12T^{2} \)
59 \( 1 - 3.09e5T + 2.48e12T^{2} \)
61 \( 1 - 1.72e5T + 3.14e12T^{2} \)
67 \( 1 - 9.94e5T + 6.06e12T^{2} \)
71 \( 1 - 9.98e5T + 9.09e12T^{2} \)
73 \( 1 + 2.23e6T + 1.10e13T^{2} \)
79 \( 1 + 2.83e6T + 1.92e13T^{2} \)
83 \( 1 - 9.17e6T + 2.71e13T^{2} \)
89 \( 1 + 5.74e6T + 4.42e13T^{2} \)
97 \( 1 - 1.06e7T + 8.07e13T^{2} \)
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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

−9.879682691618393744087486153928, −8.808526932953341907225274315962, −8.289604911112917044900830669436, −7.49611964227834324105209248786, −6.62770124298347243825807356265, −4.99109932450502722430793876187, −4.05485969267863083728906692259, −3.29053054461208711614918842444, −1.29792232058205845365416560198, −0.58504588694935449130304982919, 0.58504588694935449130304982919, 1.29792232058205845365416560198, 3.29053054461208711614918842444, 4.05485969267863083728906692259, 4.99109932450502722430793876187, 6.62770124298347243825807356265, 7.49611964227834324105209248786, 8.289604911112917044900830669436, 8.808526932953341907225274315962, 9.879682691618393744087486153928

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