Properties

Label 2-2e4-4.3-c14-0-2
Degree $2$
Conductor $16$
Sign $1$
Analytic cond. $19.8926$
Root an. cond. $4.46011$
Motivic weight $14$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 1.52e5·5-s + 4.78e6·9-s − 4.63e7·13-s + 7.86e8·17-s + 1.72e10·25-s + 1.98e10·29-s + 1.28e11·37-s − 3.89e11·41-s − 7.31e11·45-s + 6.78e11·49-s − 1.71e12·53-s + 6.00e12·61-s + 7.08e12·65-s − 6.74e12·73-s + 2.28e13·81-s − 1.20e14·85-s − 2.97e12·89-s + 1.47e14·97-s − 3.74e13·101-s + 2.15e14·109-s + 3.77e14·113-s − 2.21e14·117-s + ⋯
L(s)  = 1  − 1.95·5-s + 9-s − 0.738·13-s + 1.91·17-s + 2.82·25-s + 1.15·29-s + 1.35·37-s − 1.99·41-s − 1.95·45-s + 49-s − 1.45·53-s + 1.90·61-s + 1.44·65-s − 0.610·73-s + 81-s − 3.75·85-s − 0.0671·89-s + 1.81·97-s − 0.349·101-s + 1.18·109-s + 1.60·113-s − 0.738·117-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 16 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(15-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 16 ^{s/2} \, \Gamma_{\C}(s+7) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(16\)    =    \(2^{4}\)
Sign: $1$
Analytic conductor: \(19.8926\)
Root analytic conductor: \(4.46011\)
Motivic weight: \(14\)
Rational: yes
Arithmetic: yes
Character: $\chi_{16} (15, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 16,\ (\ :7),\ 1)\)

Particular Values

\(L(\frac{15}{2})\) \(\approx\) \(1.308921081\)
\(L(\frac12)\) \(\approx\) \(1.308921081\)
\(L(8)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
5 \( 1 + 152886 T + p^{14} T^{2} \)
7 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
11 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
13 \( 1 + 46322630 T + p^{14} T^{2} \)
17 \( 1 - 786851490 T + p^{14} T^{2} \)
19 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
23 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
29 \( 1 - 19896480282 T + p^{14} T^{2} \)
31 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
37 \( 1 - 128202918410 T + p^{14} T^{2} \)
41 \( 1 + 389417726862 T + p^{14} T^{2} \)
43 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
47 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
53 \( 1 + 1711657125270 T + p^{14} T^{2} \)
59 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
61 \( 1 - 6001852736858 T + p^{14} T^{2} \)
67 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
71 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
73 \( 1 + 6748633251470 T + p^{14} T^{2} \)
79 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
83 \( ( 1 - p^{7} T )( 1 + p^{7} T ) \)
89 \( 1 + 2971010122158 T + p^{14} T^{2} \)
97 \( 1 - 147017184612610 T + p^{14} T^{2} \)
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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

−15.66786874144147117978132179447, −14.63507563229165500020002978840, −12.56249063453334051453101661395, −11.74303211748106497918450787313, −10.12031867483186501998928159364, −8.108936289661534573838202358758, −7.17327402680311819721263451580, −4.67432988969660809053179724331, −3.37846084977597128846508968282, −0.809306913244096063449419902023, 0.809306913244096063449419902023, 3.37846084977597128846508968282, 4.67432988969660809053179724331, 7.17327402680311819721263451580, 8.108936289661534573838202358758, 10.12031867483186501998928159364, 11.74303211748106497918450787313, 12.56249063453334051453101661395, 14.63507563229165500020002978840, 15.66786874144147117978132179447

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