Properties

Label 2-21e2-1.1-c7-0-30
Degree $2$
Conductor $441$
Sign $1$
Analytic cond. $137.761$
Root an. cond. $11.7371$
Motivic weight $7$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 13·2-s + 41·4-s − 1.13e3·8-s − 8.68e3·11-s − 1.99e4·16-s − 1.12e5·22-s + 6.79e4·23-s − 7.81e4·25-s + 2.53e5·29-s − 1.14e5·32-s − 2.78e5·37-s + 1.01e6·43-s − 3.56e5·44-s + 8.83e5·46-s − 1.01e6·50-s + 1.80e6·53-s + 3.29e6·58-s + 1.06e6·64-s − 4.86e6·67-s + 3.72e6·71-s − 3.61e6·74-s + 1.10e6·79-s + 1.31e7·86-s + 9.82e6·88-s + 2.78e6·92-s − 3.20e6·100-s + 2.34e7·106-s + ⋯
L(s)  = 1  + 1.14·2-s + 0.320·4-s − 0.780·8-s − 1.96·11-s − 1.21·16-s − 2.26·22-s + 1.16·23-s − 25-s + 1.93·29-s − 0.618·32-s − 0.903·37-s + 1.94·43-s − 0.630·44-s + 1.33·46-s − 1.14·50-s + 1.66·53-s + 2.21·58-s + 0.507·64-s − 1.97·67-s + 1.23·71-s − 1.03·74-s + 0.251·79-s + 2.23·86-s + 1.53·88-s + 0.373·92-s − 0.320·100-s + 1.91·106-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: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 441,\ (\ :7/2),\ 1)\)

Particular Values

\(L(4)\) \(\approx\) \(2.558565250\)
\(L(\frac12)\) \(\approx\) \(2.558565250\)
\(L(\frac{9}{2})\) 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 \( 1 - 13 T + p^{7} T^{2} \)
5 \( 1 + p^{7} T^{2} \)
11 \( 1 + 8684 T + p^{7} T^{2} \)
13 \( 1 + p^{7} T^{2} \)
17 \( 1 + p^{7} T^{2} \)
19 \( 1 + p^{7} T^{2} \)
23 \( 1 - 67976 T + p^{7} T^{2} \)
29 \( 1 - 253622 T + p^{7} T^{2} \)
31 \( 1 + p^{7} T^{2} \)
37 \( 1 + 278382 T + p^{7} T^{2} \)
41 \( 1 + p^{7} T^{2} \)
43 \( 1 - 1014204 T + p^{7} T^{2} \)
47 \( 1 + p^{7} T^{2} \)
53 \( 1 - 1804610 T + p^{7} T^{2} \)
59 \( 1 + p^{7} T^{2} \)
61 \( 1 + p^{7} T^{2} \)
67 \( 1 + 4863092 T + p^{7} T^{2} \)
71 \( 1 - 3721744 T + p^{7} T^{2} \)
73 \( 1 + p^{7} T^{2} \)
79 \( 1 - 1101752 T + p^{7} T^{2} \)
83 \( 1 + p^{7} T^{2} \)
89 \( 1 + p^{7} T^{2} \)
97 \( 1 + p^{7} T^{2} \)
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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

−10.16972765026967418655404581066, −8.998309069090050057332974452507, −8.062021156148131218928536325516, −7.03508609341211168256493279929, −5.84471966023470115057532436114, −5.16594049101961122328847312795, −4.34448408500040583091128109046, −3.10167318798838540823912895228, −2.40291990361673072569603650144, −0.57918062571625166496922105297, 0.57918062571625166496922105297, 2.40291990361673072569603650144, 3.10167318798838540823912895228, 4.34448408500040583091128109046, 5.16594049101961122328847312795, 5.84471966023470115057532436114, 7.03508609341211168256493279929, 8.062021156148131218928536325516, 8.998309069090050057332974452507, 10.16972765026967418655404581066

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