Properties

Label 2-2e4-4.3-c14-0-1
Degree $2$
Conductor $16$
Sign $-0.500 - 0.866i$
Analytic cond. $19.8926$
Root an. cond. $4.46011$
Motivic weight $14$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 1.14e3i·3-s + 1.57e4·5-s + 2.88e5i·7-s + 3.47e6·9-s + 5.71e6i·11-s − 2.57e7·13-s + 1.80e7i·15-s − 2.60e8·17-s + 8.37e8i·19-s − 3.28e8·21-s + 5.88e9i·23-s − 5.85e9·25-s + 9.43e9i·27-s − 1.96e10·29-s + 3.89e10i·31-s + ⋯
L(s)  = 1  + 0.522i·3-s + 0.201·5-s + 0.349i·7-s + 0.727·9-s + 0.293i·11-s − 0.409·13-s + 0.105i·15-s − 0.634·17-s + 0.937i·19-s − 0.182·21-s + 1.72i·23-s − 0.959·25-s + 0.901i·27-s − 1.14·29-s + 1.41i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 16 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.500 - 0.866i)\, \overline{\Lambda}(15-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 16 ^{s/2} \, \Gamma_{\C}(s+7) \, L(s)\cr =\mathstrut & (-0.500 - 0.866i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(16\)    =    \(2^{4}\)
Sign: $-0.500 - 0.866i$
Analytic conductor: \(19.8926\)
Root analytic conductor: \(4.46011\)
Motivic weight: \(14\)
Rational: no
Arithmetic: yes
Character: $\chi_{16} (15, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 16,\ (\ :7),\ -0.500 - 0.866i)\)

Particular Values

\(L(\frac{15}{2})\) \(\approx\) \(0.755867 + 1.30920i\)
\(L(\frac12)\) \(\approx\) \(0.755867 + 1.30920i\)
\(L(8)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 - 1.14e3iT - 4.78e6T^{2} \)
5 \( 1 - 1.57e4T + 6.10e9T^{2} \)
7 \( 1 - 2.88e5iT - 6.78e11T^{2} \)
11 \( 1 - 5.71e6iT - 3.79e14T^{2} \)
13 \( 1 + 2.57e7T + 3.93e15T^{2} \)
17 \( 1 + 2.60e8T + 1.68e17T^{2} \)
19 \( 1 - 8.37e8iT - 7.99e17T^{2} \)
23 \( 1 - 5.88e9iT - 1.15e19T^{2} \)
29 \( 1 + 1.96e10T + 2.97e20T^{2} \)
31 \( 1 - 3.89e10iT - 7.56e20T^{2} \)
37 \( 1 - 3.78e10T + 9.01e21T^{2} \)
41 \( 1 - 5.95e10T + 3.79e22T^{2} \)
43 \( 1 + 4.00e11iT - 7.38e22T^{2} \)
47 \( 1 + 4.72e11iT - 2.56e23T^{2} \)
53 \( 1 - 5.00e11T + 1.37e24T^{2} \)
59 \( 1 - 2.44e12iT - 6.19e24T^{2} \)
61 \( 1 + 2.89e12T + 9.87e24T^{2} \)
67 \( 1 - 7.00e12iT - 3.67e25T^{2} \)
71 \( 1 - 5.99e12iT - 8.27e25T^{2} \)
73 \( 1 - 1.03e13T + 1.22e26T^{2} \)
79 \( 1 + 1.03e13iT - 3.68e26T^{2} \)
83 \( 1 + 3.46e13iT - 7.36e26T^{2} \)
89 \( 1 - 6.54e13T + 1.95e27T^{2} \)
97 \( 1 - 7.10e13T + 6.52e27T^{2} \)
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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

−15.94306494181518485141608887641, −14.98815537806827356999207063711, −13.41306428238467913559222237069, −11.98293904761267569829076909407, −10.33982256220592295368242034744, −9.216778914712456825368533961197, −7.34342879203946709853948257381, −5.46084371360132242137460410328, −3.84612891401976161861012803843, −1.80056172841325941168831364504, 0.54038587704151075640160233648, 2.24486047925941343751596615248, 4.38714630813622324253000123576, 6.39110768148752104426081865930, 7.72810643792124718052605879701, 9.512641265430048249617750059054, 11.05056426971601802492497066354, 12.67180900154311112622483252316, 13.65875739917114811777551068512, 15.18633264785379347516728071696

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