Properties

Label 2-2e4-4.3-c2-0-0
Degree $2$
Conductor $16$
Sign $1$
Analytic cond. $0.435968$
Root an. cond. $0.660279$
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  − 6·5-s + 9·9-s + 10·13-s − 30·17-s + 11·25-s + 42·29-s − 70·37-s + 18·41-s − 54·45-s + 49·49-s + 90·53-s − 22·61-s − 60·65-s − 110·73-s + 81·81-s + 180·85-s − 78·89-s + 130·97-s − 198·101-s − 182·109-s − 30·113-s + 90·117-s + ⋯
L(s)  = 1  − 6/5·5-s + 9-s + 0.769·13-s − 1.76·17-s + 0.439·25-s + 1.44·29-s − 1.89·37-s + 0.439·41-s − 6/5·45-s + 49-s + 1.69·53-s − 0.360·61-s − 0.923·65-s − 1.50·73-s + 81-s + 2.11·85-s − 0.876·89-s + 1.34·97-s − 1.96·101-s − 1.66·109-s − 0.265·113-s + 0.769·117-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 16 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 16 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(16\)    =    \(2^{4}\)
Sign: $1$
Analytic conductor: \(0.435968\)
Root analytic conductor: \(0.660279\)
Motivic weight: \(2\)
Rational: yes
Arithmetic: yes
Character: $\chi_{16} (15, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 16,\ (\ :1),\ 1)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.7392159185\)
\(L(\frac12)\) \(\approx\) \(0.7392159185\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( ( 1 - p T )( 1 + p T ) \)
5 \( 1 + 6 T + p^{2} T^{2} \)
7 \( ( 1 - p T )( 1 + p T ) \)
11 \( ( 1 - p T )( 1 + p T ) \)
13 \( 1 - 10 T + p^{2} T^{2} \)
17 \( 1 + 30 T + p^{2} T^{2} \)
19 \( ( 1 - p T )( 1 + p T ) \)
23 \( ( 1 - p T )( 1 + p T ) \)
29 \( 1 - 42 T + p^{2} T^{2} \)
31 \( ( 1 - p T )( 1 + p T ) \)
37 \( 1 + 70 T + p^{2} T^{2} \)
41 \( 1 - 18 T + p^{2} T^{2} \)
43 \( ( 1 - p T )( 1 + p T ) \)
47 \( ( 1 - p T )( 1 + p T ) \)
53 \( 1 - 90 T + p^{2} T^{2} \)
59 \( ( 1 - p T )( 1 + p T ) \)
61 \( 1 + 22 T + p^{2} T^{2} \)
67 \( ( 1 - p T )( 1 + p T ) \)
71 \( ( 1 - p T )( 1 + p T ) \)
73 \( 1 + 110 T + p^{2} T^{2} \)
79 \( ( 1 - p T )( 1 + p T ) \)
83 \( ( 1 - p T )( 1 + p T ) \)
89 \( 1 + 78 T + p^{2} T^{2} \)
97 \( 1 - 130 T + p^{2} T^{2} \)
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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

−19.06051373579605759802271786117, −17.82947447057657457193643002853, −15.98031784304075915422898153882, −15.39450427933260879596695517146, −13.47743853960170012065633600349, −12.04193928944153810810388327001, −10.66144251061067377468104379504, −8.616071000238428753761934055988, −6.97817398550361802636417654463, −4.20532042858809199731938716994, 4.20532042858809199731938716994, 6.97817398550361802636417654463, 8.616071000238428753761934055988, 10.66144251061067377468104379504, 12.04193928944153810810388327001, 13.47743853960170012065633600349, 15.39450427933260879596695517146, 15.98031784304075915422898153882, 17.82947447057657457193643002853, 19.06051373579605759802271786117

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