Properties

Label 2-448-4.3-c2-0-21
Degree $2$
Conductor $448$
Sign $-1$
Analytic cond. $12.2071$
Root an. cond. $3.49386$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3.85i·3-s − 0.490·5-s + 2.64i·7-s − 5.87·9-s − 15.5i·11-s − 3.50·13-s + 1.89i·15-s − 24.1·17-s − 3.56i·19-s + 10.2·21-s − 19.5i·23-s − 24.7·25-s − 12.0i·27-s + 10.9·29-s + 21.1i·31-s + ⋯
L(s)  = 1  − 1.28i·3-s − 0.0980·5-s + 0.377i·7-s − 0.652·9-s − 1.41i·11-s − 0.269·13-s + 0.126i·15-s − 1.42·17-s − 0.187i·19-s + 0.485·21-s − 0.851i·23-s − 0.990·25-s − 0.446i·27-s + 0.378·29-s + 0.683i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 448 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 448 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(448\)    =    \(2^{6} \cdot 7\)
Sign: $-1$
Analytic conductor: \(12.2071\)
Root analytic conductor: \(3.49386\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{448} (127, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 448,\ (\ :1),\ -1)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.9244832197\)
\(L(\frac12)\) \(\approx\) \(0.9244832197\)
\(L(2)\) 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 \( 1 - 2.64iT \)
good3 \( 1 + 3.85iT - 9T^{2} \)
5 \( 1 + 0.490T + 25T^{2} \)
11 \( 1 + 15.5iT - 121T^{2} \)
13 \( 1 + 3.50T + 169T^{2} \)
17 \( 1 + 24.1T + 289T^{2} \)
19 \( 1 + 3.56iT - 361T^{2} \)
23 \( 1 + 19.5iT - 529T^{2} \)
29 \( 1 - 10.9T + 841T^{2} \)
31 \( 1 - 21.1iT - 961T^{2} \)
37 \( 1 + 58.4T + 1.36e3T^{2} \)
41 \( 1 - 54.1T + 1.68e3T^{2} \)
43 \( 1 - 35.6iT - 1.84e3T^{2} \)
47 \( 1 - 64.2iT - 2.20e3T^{2} \)
53 \( 1 + 87.4T + 2.80e3T^{2} \)
59 \( 1 + 66.6iT - 3.48e3T^{2} \)
61 \( 1 + 16.8T + 3.72e3T^{2} \)
67 \( 1 + 21.2iT - 4.48e3T^{2} \)
71 \( 1 + 64.2iT - 5.04e3T^{2} \)
73 \( 1 - 99.4T + 5.32e3T^{2} \)
79 \( 1 + 139. iT - 6.24e3T^{2} \)
83 \( 1 + 6.03iT - 6.88e3T^{2} \)
89 \( 1 + 23.9T + 7.92e3T^{2} \)
97 \( 1 - 171.T + 9.40e3T^{2} \)
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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

−10.72758632580609977280961562782, −9.284506643396234254469790797196, −8.453853894243900558364788404120, −7.71557554886401109335183399222, −6.57943906230380550354683139474, −6.06951400056150015492659556388, −4.65713578082220318098334902861, −3.07224379908793761701139431391, −1.89346844064763723627466229157, −0.36600560851429686967204483019, 2.09906353488987261176171203065, 3.76595839737794330417719030503, 4.43566595374380455219534884013, 5.33119408615942954894193460212, 6.77283607910587533163057085713, 7.64741811629365531175407654668, 8.939143796348436719362932315250, 9.680177056893601103366903594710, 10.28872491943570267251114600849, 11.12632374555967809490037249650

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