Properties

Label 2-2e3-8.3-c16-0-6
Degree $2$
Conductor $8$
Sign $1$
Analytic cond. $12.9859$
Root an. cond. $3.60360$
Motivic weight $16$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 256·2-s − 1.19e4·3-s + 6.55e4·4-s − 3.06e6·6-s + 1.67e7·8-s + 1.00e8·9-s + 3.09e8·11-s − 7.84e8·12-s + 4.29e9·16-s + 1.24e10·17-s + 2.56e10·18-s − 2.87e10·19-s + 7.91e10·22-s − 2.00e11·24-s + 1.52e11·25-s − 6.83e11·27-s + 1.09e12·32-s − 3.70e12·33-s + 3.18e12·34-s + 6.56e12·36-s − 7.35e12·38-s + 8.31e11·41-s + 6.06e12·43-s + 2.02e13·44-s − 5.13e13·48-s + 3.32e13·49-s + 3.90e13·50-s + ⋯
L(s)  = 1  + 2-s − 1.82·3-s + 4-s − 1.82·6-s + 8-s + 2.32·9-s + 1.44·11-s − 1.82·12-s + 16-s + 1.78·17-s + 2.32·18-s − 1.69·19-s + 1.44·22-s − 1.82·24-s + 25-s − 2.41·27-s + 32-s − 2.63·33-s + 1.78·34-s + 2.32·36-s − 1.69·38-s + 0.104·41-s + 0.519·43-s + 1.44·44-s − 1.82·48-s + 49-s + 50-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(17-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s+8) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(8\)    =    \(2^{3}\)
Sign: $1$
Analytic conductor: \(12.9859\)
Root analytic conductor: \(3.60360\)
Motivic weight: \(16\)
Rational: yes
Arithmetic: yes
Character: $\chi_{8} (3, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 8,\ (\ :8),\ 1)\)

Particular Values

\(L(\frac{17}{2})\) \(\approx\) \(2.144068224\)
\(L(\frac12)\) \(\approx\) \(2.144068224\)
\(L(9)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - p^{8} T \)
good3 \( 1 + 11966 T + p^{16} T^{2} \)
5 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
7 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
11 \( 1 - 309273794 T + p^{16} T^{2} \)
13 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
17 \( 1 - 12433289474 T + p^{16} T^{2} \)
19 \( 1 + 28741860286 T + p^{16} T^{2} \)
23 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
29 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
31 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
37 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
41 \( 1 - 831999729794 T + p^{16} T^{2} \)
43 \( 1 - 6069438110402 T + p^{16} T^{2} \)
47 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
53 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
59 \( 1 - 290918580565442 T + p^{16} T^{2} \)
61 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
67 \( 1 + 617692243063486 T + p^{16} T^{2} \)
71 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
73 \( 1 + 486139502245246 T + p^{16} T^{2} \)
79 \( ( 1 - p^{8} T )( 1 + p^{8} T ) \)
83 \( 1 + 3591943143595966 T + p^{16} T^{2} \)
89 \( 1 - 1250855726873474 T + p^{16} T^{2} \)
97 \( 1 + 9681283613729278 T + p^{16} T^{2} \)
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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

−17.13965795486358159301762325927, −16.45154061831444909924523333714, −14.69661013830629080208398905119, −12.63341338294129841716456003663, −11.74499799212511425991230099549, −10.45921284267664564680325940219, −6.83194466017151892575749055290, −5.70944037741068476226647316655, −4.19312588024681186468930981469, −1.17397526723523166934698229275, 1.17397526723523166934698229275, 4.19312588024681186468930981469, 5.70944037741068476226647316655, 6.83194466017151892575749055290, 10.45921284267664564680325940219, 11.74499799212511425991230099549, 12.63341338294129841716456003663, 14.69661013830629080208398905119, 16.45154061831444909924523333714, 17.13965795486358159301762325927

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