Properties

Label 2-308-1.1-c1-0-5
Degree $2$
Conductor $308$
Sign $-1$
Analytic cond. $2.45939$
Root an. cond. $1.56824$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s − 5-s − 7-s − 2·9-s + 11-s − 4·13-s + 15-s − 6·17-s − 2·19-s + 21-s + 23-s − 4·25-s + 5·27-s + 2·29-s − 31-s − 33-s + 35-s − 9·37-s + 4·39-s + 6·41-s + 8·43-s + 2·45-s − 8·47-s + 49-s + 6·51-s + 10·53-s − 55-s + ⋯
L(s)  = 1  − 0.577·3-s − 0.447·5-s − 0.377·7-s − 2/3·9-s + 0.301·11-s − 1.10·13-s + 0.258·15-s − 1.45·17-s − 0.458·19-s + 0.218·21-s + 0.208·23-s − 4/5·25-s + 0.962·27-s + 0.371·29-s − 0.179·31-s − 0.174·33-s + 0.169·35-s − 1.47·37-s + 0.640·39-s + 0.937·41-s + 1.21·43-s + 0.298·45-s − 1.16·47-s + 1/7·49-s + 0.840·51-s + 1.37·53-s − 0.134·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 308 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 308 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(308\)    =    \(2^{2} \cdot 7 \cdot 11\)
Sign: $-1$
Analytic conductor: \(2.45939\)
Root analytic conductor: \(1.56824\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 308,\ (\ :1/2),\ -1)\)

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 \( 1 + T \)
11 \( 1 - T \)
good3 \( 1 + T + p T^{2} \)
5 \( 1 + T + p T^{2} \)
13 \( 1 + 4 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
19 \( 1 + 2 T + p T^{2} \)
23 \( 1 - T + p T^{2} \)
29 \( 1 - 2 T + p T^{2} \)
31 \( 1 + T + p T^{2} \)
37 \( 1 + 9 T + p T^{2} \)
41 \( 1 - 6 T + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 + 8 T + p T^{2} \)
53 \( 1 - 10 T + p T^{2} \)
59 \( 1 - T + p T^{2} \)
61 \( 1 + 2 T + p T^{2} \)
67 \( 1 - 11 T + p T^{2} \)
71 \( 1 - 11 T + p T^{2} \)
73 \( 1 + 14 T + p T^{2} \)
79 \( 1 + 14 T + p T^{2} \)
83 \( 1 - 4 T + p T^{2} \)
89 \( 1 - 13 T + p T^{2} \)
97 \( 1 + 9 T + p T^{2} \)
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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

−11.32302259604564208279169259600, −10.47059015029117792874482226264, −9.329473956457167641788706515594, −8.441807132405645212577785816781, −7.20044051165186333263902429412, −6.33749430761827790522533904144, −5.18672240750960531371029490123, −4.05589871533530008614715770615, −2.50570574661996799886651591918, 0, 2.50570574661996799886651591918, 4.05589871533530008614715770615, 5.18672240750960531371029490123, 6.33749430761827790522533904144, 7.20044051165186333263902429412, 8.441807132405645212577785816781, 9.329473956457167641788706515594, 10.47059015029117792874482226264, 11.32302259604564208279169259600

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