Properties

Label 2-48-1.1-c1-0-0
Degree $2$
Conductor $48$
Sign $1$
Analytic cond. $0.383281$
Root an. cond. $0.619097$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s − 2·5-s + 9-s − 4·11-s − 2·13-s − 2·15-s + 2·17-s + 4·19-s + 8·23-s − 25-s + 27-s + 6·29-s − 8·31-s − 4·33-s + 6·37-s − 2·39-s − 6·41-s − 4·43-s − 2·45-s − 7·49-s + 2·51-s − 2·53-s + 8·55-s + 4·57-s − 4·59-s − 2·61-s + 4·65-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.894·5-s + 1/3·9-s − 1.20·11-s − 0.554·13-s − 0.516·15-s + 0.485·17-s + 0.917·19-s + 1.66·23-s − 1/5·25-s + 0.192·27-s + 1.11·29-s − 1.43·31-s − 0.696·33-s + 0.986·37-s − 0.320·39-s − 0.937·41-s − 0.609·43-s − 0.298·45-s − 49-s + 0.280·51-s − 0.274·53-s + 1.07·55-s + 0.529·57-s − 0.520·59-s − 0.256·61-s + 0.496·65-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 48 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 48 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(48\)    =    \(2^{4} \cdot 3\)
Sign: $1$
Analytic conductor: \(0.383281\)
Root analytic conductor: \(0.619097\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 48,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.8428751774\)
\(L(\frac12)\) \(\approx\) \(0.8428751774\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$Isogeny Class over $\mathbf{F}_p$
bad2 \( 1 \)
3 \( 1 - T \)
good5 \( 1 + 2 T + p T^{2} \) 1.5.c
7 \( 1 + p T^{2} \) 1.7.a
11 \( 1 + 4 T + p T^{2} \) 1.11.e
13 \( 1 + 2 T + p T^{2} \) 1.13.c
17 \( 1 - 2 T + p T^{2} \) 1.17.ac
19 \( 1 - 4 T + p T^{2} \) 1.19.ae
23 \( 1 - 8 T + p T^{2} \) 1.23.ai
29 \( 1 - 6 T + p T^{2} \) 1.29.ag
31 \( 1 + 8 T + p T^{2} \) 1.31.i
37 \( 1 - 6 T + p T^{2} \) 1.37.ag
41 \( 1 + 6 T + p T^{2} \) 1.41.g
43 \( 1 + 4 T + p T^{2} \) 1.43.e
47 \( 1 + p T^{2} \) 1.47.a
53 \( 1 + 2 T + p T^{2} \) 1.53.c
59 \( 1 + 4 T + p T^{2} \) 1.59.e
61 \( 1 + 2 T + p T^{2} \) 1.61.c
67 \( 1 - 4 T + p T^{2} \) 1.67.ae
71 \( 1 + 8 T + p T^{2} \) 1.71.i
73 \( 1 - 10 T + p T^{2} \) 1.73.ak
79 \( 1 - 8 T + p T^{2} \) 1.79.ai
83 \( 1 - 4 T + p T^{2} \) 1.83.ae
89 \( 1 + 6 T + p T^{2} \) 1.89.g
97 \( 1 - 2 T + p T^{2} \) 1.97.ac
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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

−15.57665942877913827434892573142, −14.73956752065291729947920771211, −13.40929752839485230085938675601, −12.32215863397544621963398389319, −11.02059068705223596291987853205, −9.656797755147918818405236990829, −8.173282349834764667604075089133, −7.26958585488936859387169650645, −5.01357758335939619070346679818, −3.14826068230388029805668446658, 3.14826068230388029805668446658, 5.01357758335939619070346679818, 7.26958585488936859387169650645, 8.173282349834764667604075089133, 9.656797755147918818405236990829, 11.02059068705223596291987853205, 12.32215863397544621963398389319, 13.40929752839485230085938675601, 14.73956752065291729947920771211, 15.57665942877913827434892573142

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