Properties

Label 2-20888-1.1-c1-0-3
Degree $2$
Conductor $20888$
Sign $-1$
Analytic cond. $166.791$
Root an. cond. $12.9147$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $3$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3·3-s − 4·5-s − 7-s + 6·9-s − 6·11-s − 7·13-s + 12·15-s − 7·17-s − 8·19-s + 3·21-s − 6·23-s + 11·25-s − 9·27-s − 2·29-s − 7·31-s + 18·33-s + 4·35-s − 7·37-s + 21·39-s + 5·41-s − 24·45-s − 6·47-s + 49-s + 21·51-s − 10·53-s + 24·55-s + 24·57-s + ⋯
L(s)  = 1  − 1.73·3-s − 1.78·5-s − 0.377·7-s + 2·9-s − 1.80·11-s − 1.94·13-s + 3.09·15-s − 1.69·17-s − 1.83·19-s + 0.654·21-s − 1.25·23-s + 11/5·25-s − 1.73·27-s − 0.371·29-s − 1.25·31-s + 3.13·33-s + 0.676·35-s − 1.15·37-s + 3.36·39-s + 0.780·41-s − 3.57·45-s − 0.875·47-s + 1/7·49-s + 2.94·51-s − 1.37·53-s + 3.23·55-s + 3.17·57-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 20888 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 20888 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(20888\)    =    \(2^{3} \cdot 7 \cdot 373\)
Sign: $-1$
Analytic conductor: \(166.791\)
Root analytic conductor: \(12.9147\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(3\)
Selberg data: \((2,\ 20888,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 + T \)
373 \( 1 + T \)
good3 \( 1 + p T + p T^{2} \)
5 \( 1 + 4 T + p T^{2} \)
11 \( 1 + 6 T + p T^{2} \)
13 \( 1 + 7 T + p T^{2} \)
17 \( 1 + 7 T + p T^{2} \)
19 \( 1 + 8 T + p T^{2} \)
23 \( 1 + 6 T + p T^{2} \)
29 \( 1 + 2 T + p T^{2} \)
31 \( 1 + 7 T + p T^{2} \)
37 \( 1 + 7 T + p T^{2} \)
41 \( 1 - 5 T + p T^{2} \)
43 \( 1 + p T^{2} \)
47 \( 1 + 6 T + p T^{2} \)
53 \( 1 + 10 T + p T^{2} \)
59 \( 1 - 7 T + p T^{2} \)
61 \( 1 + 10 T + p T^{2} \)
67 \( 1 - 4 T + p T^{2} \)
71 \( 1 - 3 T + p T^{2} \)
73 \( 1 - T + p T^{2} \)
79 \( 1 + 12 T + p T^{2} \)
83 \( 1 + 3 T + p T^{2} \)
89 \( 1 - 15 T + p T^{2} \)
97 \( 1 + 12 T + p T^{2} \)
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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

−16.19489529551934, −15.99793786494341, −15.55476631080825, −15.02858101398039, −14.56101387820836, −13.32691029240681, −12.79832100174773, −12.49387177454269, −12.14312752972051, −11.42108193656213, −10.90683508873543, −10.67629146886166, −10.09212007627868, −9.296416072218432, −8.358086390794446, −7.874134359105098, −7.234981728128187, −6.884069048247837, −6.197949378574714, −5.353256698872530, −4.811515052989155, −4.425673245136290, −3.817320072621513, −2.661579423864415, −1.991679235911286, 0, 0, 0, 1.991679235911286, 2.661579423864415, 3.817320072621513, 4.425673245136290, 4.811515052989155, 5.353256698872530, 6.197949378574714, 6.884069048247837, 7.234981728128187, 7.874134359105098, 8.358086390794446, 9.296416072218432, 10.09212007627868, 10.67629146886166, 10.90683508873543, 11.42108193656213, 12.14312752972051, 12.49387177454269, 12.79832100174773, 13.32691029240681, 14.56101387820836, 15.02858101398039, 15.55476631080825, 15.99793786494341, 16.19489529551934

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