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Properties

Label 2-448-7.2-c1-0-4
Degree $2$
Conductor $448$
Sign $-0.386 - 0.922i$
Analytic cond. $3.57729$
Root an. cond. $1.89137$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (1.5 + 2.59i)3-s + (−0.5 + 0.866i)5-s + (2 + 1.73i)7-s + (−3 + 5.19i)9-s + (−0.5 − 0.866i)11-s − 2·13-s − 3·15-s + (−1.5 − 2.59i)17-s + (2.5 − 4.33i)19-s + (−1.5 + 7.79i)21-s + (1.5 − 2.59i)23-s + (2 + 3.46i)25-s − 9·27-s + 6·29-s + (0.5 + 0.866i)31-s + ⋯
L(s)  = 1  + (0.866 + 1.49i)3-s + (−0.223 + 0.387i)5-s + (0.755 + 0.654i)7-s + (−1 + 1.73i)9-s + (−0.150 − 0.261i)11-s − 0.554·13-s − 0.774·15-s + (−0.363 − 0.630i)17-s + (0.573 − 0.993i)19-s + (−0.327 + 1.70i)21-s + (0.312 − 0.541i)23-s + (0.400 + 0.692i)25-s − 1.73·27-s + 1.11·29-s + (0.0898 + 0.155i)31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 448 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.386 - 0.922i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 448 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.386 - 0.922i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(448\)    =    \(2^{6} \cdot 7\)
Sign: $-0.386 - 0.922i$
Analytic conductor: \(3.57729\)
Root analytic conductor: \(1.89137\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{448} (65, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 448,\ (\ :1/2),\ -0.386 - 0.922i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.996721 + 1.49841i\)
\(L(\frac12)\) \(\approx\) \(0.996721 + 1.49841i\)
\(L(\frac{3}{2})\) 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 \( 1 + (-2 - 1.73i)T \)
good3 \( 1 + (-1.5 - 2.59i)T + (-1.5 + 2.59i)T^{2} \)
5 \( 1 + (0.5 - 0.866i)T + (-2.5 - 4.33i)T^{2} \)
11 \( 1 + (0.5 + 0.866i)T + (-5.5 + 9.52i)T^{2} \)
13 \( 1 + 2T + 13T^{2} \)
17 \( 1 + (1.5 + 2.59i)T + (-8.5 + 14.7i)T^{2} \)
19 \( 1 + (-2.5 + 4.33i)T + (-9.5 - 16.4i)T^{2} \)
23 \( 1 + (-1.5 + 2.59i)T + (-11.5 - 19.9i)T^{2} \)
29 \( 1 - 6T + 29T^{2} \)
31 \( 1 + (-0.5 - 0.866i)T + (-15.5 + 26.8i)T^{2} \)
37 \( 1 + (2.5 - 4.33i)T + (-18.5 - 32.0i)T^{2} \)
41 \( 1 + 10T + 41T^{2} \)
43 \( 1 - 4T + 43T^{2} \)
47 \( 1 + (0.5 - 0.866i)T + (-23.5 - 40.7i)T^{2} \)
53 \( 1 + (4.5 + 7.79i)T + (-26.5 + 45.8i)T^{2} \)
59 \( 1 + (-1.5 - 2.59i)T + (-29.5 + 51.0i)T^{2} \)
61 \( 1 + (-1.5 + 2.59i)T + (-30.5 - 52.8i)T^{2} \)
67 \( 1 + (-5.5 - 9.52i)T + (-33.5 + 58.0i)T^{2} \)
71 \( 1 - 16T + 71T^{2} \)
73 \( 1 + (3.5 + 6.06i)T + (-36.5 + 63.2i)T^{2} \)
79 \( 1 + (-5.5 + 9.52i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 - 4T + 83T^{2} \)
89 \( 1 + (-4.5 + 7.79i)T + (-44.5 - 77.0i)T^{2} \)
97 \( 1 - 6T + 97T^{2} \)
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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

−11.18143546427841463818942759146, −10.42784991413781463946568626589, −9.502098050547633598934452136032, −8.793044937181622240119597585892, −8.080453914350116039418667028901, −6.86698067804866699275782873062, −5.11904549307203993490682241331, −4.75245387324220719512885046039, −3.30848895295155402462994362908, −2.52450582703725952683946258894, 1.13387679500666644814933230384, 2.25056367087603332020954781162, 3.68900193758903036522364230515, 5.02565532107304960916713457428, 6.46639484243756491199304551933, 7.33532063233157414062992868651, 8.031987535371007416867774387683, 8.581922835133778278259751725937, 9.797425823616321587668115275112, 10.92763573543515004069109488814

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