Properties

Label 2-2e3-8.3-c18-0-6
Degree $2$
Conductor $8$
Sign $1$
Analytic cond. $16.4308$
Root an. cond. $4.05350$
Motivic weight $18$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 512·2-s − 3.26e3·3-s + 2.62e5·4-s + 1.67e6·6-s − 1.34e8·8-s − 3.76e8·9-s − 3.54e8·11-s − 8.56e8·12-s + 6.87e10·16-s + 1.19e11·17-s + 1.92e11·18-s + 3.35e11·19-s + 1.81e11·22-s + 4.38e11·24-s + 3.81e12·25-s + 2.49e12·27-s − 3.51e13·32-s + 1.15e12·33-s − 6.13e13·34-s − 9.87e13·36-s − 1.71e14·38-s + 5.22e14·41-s + 1.00e15·43-s − 9.28e13·44-s − 2.24e14·48-s + 1.62e15·49-s − 1.95e15·50-s + ⋯
L(s)  = 1  − 2-s − 0.165·3-s + 4-s + 0.165·6-s − 8-s − 0.972·9-s − 0.150·11-s − 0.165·12-s + 16-s + 1.01·17-s + 0.972·18-s + 1.03·19-s + 0.150·22-s + 0.165·24-s + 25-s + 0.327·27-s − 32-s + 0.0249·33-s − 1.01·34-s − 0.972·36-s − 1.03·38-s + 1.59·41-s + 1.99·43-s − 0.150·44-s − 0.165·48-s + 49-s − 50-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(19-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s+9) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(8\)    =    \(2^{3}\)
Sign: $1$
Analytic conductor: \(16.4308\)
Root analytic conductor: \(4.05350\)
Motivic weight: \(18\)
Rational: yes
Arithmetic: yes
Character: $\chi_{8} (3, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 8,\ (\ :9),\ 1)\)

Particular Values

\(L(\frac{19}{2})\) \(\approx\) \(1.005235481\)
\(L(\frac12)\) \(\approx\) \(1.005235481\)
\(L(10)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + p^{9} T \)
good3 \( 1 + 3266 T + p^{18} T^{2} \)
5 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
7 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
11 \( 1 + 354349618 T + p^{18} T^{2} \)
13 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
17 \( 1 - 119842447106 T + p^{18} T^{2} \)
19 \( 1 - 335013705758 T + p^{18} T^{2} \)
23 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
29 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
31 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
37 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
41 \( 1 - 522162604887122 T + p^{18} T^{2} \)
43 \( 1 - 1000250360894414 T + p^{18} T^{2} \)
47 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
53 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
59 \( 1 + 10228968070290322 T + p^{18} T^{2} \)
61 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
67 \( 1 + 50467064407716994 T + p^{18} T^{2} \)
71 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
73 \( 1 - 60615173082969074 T + p^{18} T^{2} \)
79 \( ( 1 - p^{9} T )( 1 + p^{9} T ) \)
83 \( 1 + 352960460737558306 T + p^{18} T^{2} \)
89 \( 1 - 487058048464217618 T + p^{18} T^{2} \)
97 \( 1 - 1501067319528053666 T + p^{18} T^{2} \)
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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

−17.25015686684452779350115640818, −16.09913007655302117059442623329, −14.42937327358380382208673063191, −12.13732071521618368298974150525, −10.77559796819373836412693834240, −9.164228427777453638680081946230, −7.62096215390452891726412479010, −5.77303505402709931288202008215, −2.87088902024946567099645033173, −0.852338956263912012290963447041, 0.852338956263912012290963447041, 2.87088902024946567099645033173, 5.77303505402709931288202008215, 7.62096215390452891726412479010, 9.164228427777453638680081946230, 10.77559796819373836412693834240, 12.13732071521618368298974150525, 14.42937327358380382208673063191, 16.09913007655302117059442623329, 17.25015686684452779350115640818

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