Properties

Label 2-48-4.3-c4-0-2
Degree $2$
Conductor $48$
Sign $i$
Analytic cond. $4.96175$
Root an. cond. $2.22750$
Motivic weight $4$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 5.19i·3-s + 6·5-s − 62.3i·7-s − 27·9-s − 187. i·11-s − 86·13-s − 31.1i·15-s + 426·17-s − 62.3i·19-s − 324·21-s + 748. i·23-s − 589·25-s + 140. i·27-s + 1.18e3·29-s + 1.55e3i·31-s + ⋯
L(s)  = 1  − 0.577i·3-s + 0.239·5-s − 1.27i·7-s − 0.333·9-s − 1.54i·11-s − 0.508·13-s − 0.138i·15-s + 1.47·17-s − 0.172i·19-s − 0.734·21-s + 1.41i·23-s − 0.942·25-s + 0.192i·27-s + 1.40·29-s + 1.62i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 48 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & i\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 48 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & i\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(48\)    =    \(2^{4} \cdot 3\)
Sign: $i$
Analytic conductor: \(4.96175\)
Root analytic conductor: \(2.22750\)
Motivic weight: \(4\)
Rational: no
Arithmetic: yes
Character: $\chi_{48} (31, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 48,\ (\ :2),\ i)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(1.01974 - 1.01974i\)
\(L(\frac12)\) \(\approx\) \(1.01974 - 1.01974i\)
\(L(3)\) 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 \( 1 + 5.19iT \)
good5 \( 1 - 6T + 625T^{2} \)
7 \( 1 + 62.3iT - 2.40e3T^{2} \)
11 \( 1 + 187. iT - 1.46e4T^{2} \)
13 \( 1 + 86T + 2.85e4T^{2} \)
17 \( 1 - 426T + 8.35e4T^{2} \)
19 \( 1 + 62.3iT - 1.30e5T^{2} \)
23 \( 1 - 748. iT - 2.79e5T^{2} \)
29 \( 1 - 1.18e3T + 7.07e5T^{2} \)
31 \( 1 - 1.55e3iT - 9.23e5T^{2} \)
37 \( 1 + 430T + 1.87e6T^{2} \)
41 \( 1 - 2.25e3T + 2.82e6T^{2} \)
43 \( 1 + 2.68e3iT - 3.41e6T^{2} \)
47 \( 1 + 374. iT - 4.87e6T^{2} \)
53 \( 1 + 1.60e3T + 7.89e6T^{2} \)
59 \( 1 + 3.55e3iT - 1.21e7T^{2} \)
61 \( 1 - 2.11e3T + 1.38e7T^{2} \)
67 \( 1 - 1.30e3iT - 2.01e7T^{2} \)
71 \( 1 - 2.99e3iT - 2.54e7T^{2} \)
73 \( 1 - 4.06e3T + 2.83e7T^{2} \)
79 \( 1 - 5.54e3iT - 3.89e7T^{2} \)
83 \( 1 - 9.16e3iT - 4.74e7T^{2} \)
89 \( 1 + 2.04e3T + 6.27e7T^{2} \)
97 \( 1 + 2.94e3T + 8.85e7T^{2} \)
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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

−13.99674766529058251096525996969, −13.86924617555421987527962627285, −12.35400131475003144023861275541, −11.08410735332800373285155252329, −9.911278195966264303669118365165, −8.226501656210905022532656375581, −7.09138556043584818311730088930, −5.57794918279561849813948839302, −3.42841110485394955965120713675, −0.962472847177862525655787463656, 2.46075016701042556698623068330, 4.63887968615779976205185011438, 6.00217194436756973025855971757, 7.87186580605940306520826360810, 9.390896301329452375271742999677, 10.14836976428060325075866909605, 11.89890521089086699520929490451, 12.59975500553505287172079269396, 14.44044932249046000372628729897, 15.08648996790147396481997118942

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