Properties

Label 2-72-8.3-c8-0-18
Degree $2$
Conductor $72$
Sign $1$
Analytic cond. $29.3312$
Root an. cond. $5.41583$
Motivic weight $8$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 16·2-s + 256·4-s − 4.09e3·8-s + 2.71e4·11-s + 6.55e4·16-s − 1.62e5·17-s − 7.22e4·19-s − 4.34e5·22-s + 3.90e5·25-s − 1.04e6·32-s + 2.59e6·34-s + 1.15e6·38-s + 4.09e6·41-s + 5.42e6·43-s + 6.95e6·44-s + 5.76e6·49-s − 6.25e6·50-s + 2.41e7·59-s + 1.67e7·64-s − 1.39e7·67-s − 4.15e7·68-s + 3.35e7·73-s − 1.85e7·76-s − 6.55e7·82-s − 3.02e7·83-s − 8.68e7·86-s − 1.11e8·88-s + ⋯
L(s)  = 1  − 2-s + 4-s − 8-s + 1.85·11-s + 16-s − 1.94·17-s − 0.554·19-s − 1.85·22-s + 25-s − 32-s + 1.94·34-s + 0.554·38-s + 1.45·41-s + 1.58·43-s + 1.85·44-s + 49-s − 50-s + 1.99·59-s + 64-s − 0.691·67-s − 1.94·68-s + 1.18·73-s − 0.554·76-s − 1.45·82-s − 0.636·83-s − 1.58·86-s − 1.85·88-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 72 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(9-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 72 ^{s/2} \, \Gamma_{\C}(s+4) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(72\)    =    \(2^{3} \cdot 3^{2}\)
Sign: $1$
Analytic conductor: \(29.3312\)
Root analytic conductor: \(5.41583\)
Motivic weight: \(8\)
Rational: yes
Arithmetic: yes
Character: $\chi_{72} (19, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 72,\ (\ :4),\ 1)\)

Particular Values

\(L(\frac{9}{2})\) \(\approx\) \(1.287009537\)
\(L(\frac12)\) \(\approx\) \(1.287009537\)
\(L(5)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + p^{4} T \)
3 \( 1 \)
good5 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
7 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
11 \( 1 - 27166 T + p^{8} T^{2} \)
13 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
17 \( 1 + 162434 T + p^{8} T^{2} \)
19 \( 1 + 72286 T + p^{8} T^{2} \)
23 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
29 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
31 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
37 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
41 \( 1 - 4099006 T + p^{8} T^{2} \)
43 \( 1 - 5426402 T + p^{8} T^{2} \)
47 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
53 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
59 \( 1 - 24178078 T + p^{8} T^{2} \)
61 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
67 \( 1 + 13944286 T + p^{8} T^{2} \)
71 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
73 \( 1 - 33567554 T + p^{8} T^{2} \)
79 \( ( 1 - p^{4} T )( 1 + p^{4} T ) \)
83 \( 1 + 30209954 T + p^{8} T^{2} \)
89 \( 1 - 95519806 T + p^{8} T^{2} \)
97 \( 1 + 77418238 T + p^{8} T^{2} \)
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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

−12.71652748465689903955636899162, −11.55855434625550147749629176946, −10.74347228709713992118239296042, −9.267792989298159224121322456115, −8.710847794623587356398636636618, −7.07369133049232427194012281561, −6.24796730326721899526532144922, −4.11622458808733833496086710795, −2.27506294062539411504738469965, −0.845024508693897854125912822917, 0.845024508693897854125912822917, 2.27506294062539411504738469965, 4.11622458808733833496086710795, 6.24796730326721899526532144922, 7.07369133049232427194012281561, 8.710847794623587356398636636618, 9.267792989298159224121322456115, 10.74347228709713992118239296042, 11.55855434625550147749629176946, 12.71652748465689903955636899162

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