Properties

Label 2-48-1.1-c3-0-1
Degree $2$
Conductor $48$
Sign $1$
Analytic cond. $2.83209$
Root an. cond. $1.68288$
Motivic weight $3$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3·3-s + 6·5-s + 16·7-s + 9·9-s − 12·11-s + 38·13-s + 18·15-s − 126·17-s − 20·19-s + 48·21-s − 168·23-s − 89·25-s + 27·27-s + 30·29-s + 88·31-s − 36·33-s + 96·35-s + 254·37-s + 114·39-s + 42·41-s + 52·43-s + 54·45-s + 96·47-s − 87·49-s − 378·51-s + 198·53-s − 72·55-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.536·5-s + 0.863·7-s + 1/3·9-s − 0.328·11-s + 0.810·13-s + 0.309·15-s − 1.79·17-s − 0.241·19-s + 0.498·21-s − 1.52·23-s − 0.711·25-s + 0.192·27-s + 0.192·29-s + 0.509·31-s − 0.189·33-s + 0.463·35-s + 1.12·37-s + 0.468·39-s + 0.159·41-s + 0.184·43-s + 0.178·45-s + 0.297·47-s − 0.253·49-s − 1.03·51-s + 0.513·53-s − 0.176·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 48 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 48 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(48\)    =    \(2^{4} \cdot 3\)
Sign: $1$
Analytic conductor: \(2.83209\)
Root analytic conductor: \(1.68288\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 48,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.740630162\)
\(L(\frac12)\) \(\approx\) \(1.740630162\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - p T \)
good5 \( 1 - 6 T + p^{3} T^{2} \)
7 \( 1 - 16 T + p^{3} T^{2} \)
11 \( 1 + 12 T + p^{3} T^{2} \)
13 \( 1 - 38 T + p^{3} T^{2} \)
17 \( 1 + 126 T + p^{3} T^{2} \)
19 \( 1 + 20 T + p^{3} T^{2} \)
23 \( 1 + 168 T + p^{3} T^{2} \)
29 \( 1 - 30 T + p^{3} T^{2} \)
31 \( 1 - 88 T + p^{3} T^{2} \)
37 \( 1 - 254 T + p^{3} T^{2} \)
41 \( 1 - 42 T + p^{3} T^{2} \)
43 \( 1 - 52 T + p^{3} T^{2} \)
47 \( 1 - 96 T + p^{3} T^{2} \)
53 \( 1 - 198 T + p^{3} T^{2} \)
59 \( 1 - 660 T + p^{3} T^{2} \)
61 \( 1 + 538 T + p^{3} T^{2} \)
67 \( 1 + 884 T + p^{3} T^{2} \)
71 \( 1 + 792 T + p^{3} T^{2} \)
73 \( 1 - 218 T + p^{3} T^{2} \)
79 \( 1 - 520 T + p^{3} T^{2} \)
83 \( 1 - 492 T + p^{3} T^{2} \)
89 \( 1 - 810 T + p^{3} T^{2} \)
97 \( 1 - 1154 T + p^{3} T^{2} \)
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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

−15.10691688359171568921321810275, −13.91635818657304001672664390565, −13.21198275139265964661150152458, −11.57402572492926697932355447577, −10.37838089010935976399949088931, −8.964906868441660068959189039192, −7.908886243795708851278077883517, −6.16857799865124706908386024437, −4.34483398041061295087593373294, −2.10167815592214400200405597643, 2.10167815592214400200405597643, 4.34483398041061295087593373294, 6.16857799865124706908386024437, 7.908886243795708851278077883517, 8.964906868441660068959189039192, 10.37838089010935976399949088931, 11.57402572492926697932355447577, 13.21198275139265964661150152458, 13.91635818657304001672664390565, 15.10691688359171568921321810275

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