Properties

Label 2-72-8.3-c2-0-6
Degree $2$
Conductor $72$
Sign $1$
Analytic cond. $1.96185$
Root an. cond. $1.40066$
Motivic weight $2$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·2-s + 4·4-s + 8·8-s − 14·11-s + 16·16-s − 2·17-s − 34·19-s − 28·22-s + 25·25-s + 32·32-s − 4·34-s − 68·38-s + 46·41-s + 14·43-s − 56·44-s + 49·49-s + 50·50-s + 82·59-s + 64·64-s + 62·67-s − 8·68-s − 142·73-s − 136·76-s + 92·82-s − 158·83-s + 28·86-s − 112·88-s + ⋯
L(s)  = 1  + 2-s + 4-s + 8-s − 1.27·11-s + 16-s − 0.117·17-s − 1.78·19-s − 1.27·22-s + 25-s + 32-s − 0.117·34-s − 1.78·38-s + 1.12·41-s + 0.325·43-s − 1.27·44-s + 49-s + 50-s + 1.38·59-s + 64-s + 0.925·67-s − 0.117·68-s − 1.94·73-s − 1.78·76-s + 1.12·82-s − 1.90·83-s + 0.325·86-s − 1.27·88-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 72 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 72 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(72\)    =    \(2^{3} \cdot 3^{2}\)
Sign: $1$
Analytic conductor: \(1.96185\)
Root analytic conductor: \(1.40066\)
Motivic weight: \(2\)
Rational: yes
Arithmetic: yes
Character: $\chi_{72} (19, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 72,\ (\ :1),\ 1)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(2.055769513\)
\(L(\frac12)\) \(\approx\) \(2.055769513\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - p T \)
3 \( 1 \)
good5 \( ( 1 - p T )( 1 + p T ) \)
7 \( ( 1 - p T )( 1 + p T ) \)
11 \( 1 + 14 T + p^{2} T^{2} \)
13 \( ( 1 - p T )( 1 + p T ) \)
17 \( 1 + 2 T + p^{2} T^{2} \)
19 \( 1 + 34 T + p^{2} T^{2} \)
23 \( ( 1 - p T )( 1 + p T ) \)
29 \( ( 1 - p T )( 1 + p T ) \)
31 \( ( 1 - p T )( 1 + p T ) \)
37 \( ( 1 - p T )( 1 + p T ) \)
41 \( 1 - 46 T + p^{2} T^{2} \)
43 \( 1 - 14 T + p^{2} T^{2} \)
47 \( ( 1 - p T )( 1 + p T ) \)
53 \( ( 1 - p T )( 1 + p T ) \)
59 \( 1 - 82 T + p^{2} T^{2} \)
61 \( ( 1 - p T )( 1 + p T ) \)
67 \( 1 - 62 T + p^{2} T^{2} \)
71 \( ( 1 - p T )( 1 + p T ) \)
73 \( 1 + 142 T + p^{2} T^{2} \)
79 \( ( 1 - p T )( 1 + p T ) \)
83 \( 1 + 158 T + p^{2} T^{2} \)
89 \( 1 + 146 T + p^{2} T^{2} \)
97 \( 1 + 94 T + p^{2} T^{2} \)
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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

−14.39569596648933960311916381740, −13.14693378937286856306913915897, −12.57046798682164528150473448557, −11.12222283902763454964896200586, −10.31668919882836182511271258838, −8.406498133634436240111534652661, −7.06031335001717125662337247420, −5.70544546324882239535508589477, −4.36754048222466593649841531068, −2.55815955809632910426033901254, 2.55815955809632910426033901254, 4.36754048222466593649841531068, 5.70544546324882239535508589477, 7.06031335001717125662337247420, 8.406498133634436240111534652661, 10.31668919882836182511271258838, 11.12222283902763454964896200586, 12.57046798682164528150473448557, 13.14693378937286856306913915897, 14.39569596648933960311916381740

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