Properties

Label 2-42-7.6-c8-0-8
Degree $2$
Conductor $42$
Sign $-0.770 + 0.637i$
Analytic cond. $17.1099$
Root an. cond. $4.13641$
Motivic weight $8$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 11.3·2-s + 46.7i·3-s + 128.·4-s − 1.21e3i·5-s − 529. i·6-s + (1.53e3 + 1.85e3i)7-s − 1.44e3·8-s − 2.18e3·9-s + 1.37e4i·10-s − 6.83e3·11-s + 5.98e3i·12-s + 1.77e4i·13-s + (−1.73e4 − 2.09e4i)14-s + 5.69e4·15-s + 1.63e4·16-s − 7.47e4i·17-s + ⋯
L(s)  = 1  − 0.707·2-s + 0.577i·3-s + 0.500·4-s − 1.94i·5-s − 0.408i·6-s + (0.637 + 0.770i)7-s − 0.353·8-s − 0.333·9-s + 1.37i·10-s − 0.466·11-s + 0.288i·12-s + 0.623i·13-s + (−0.450 − 0.544i)14-s + 1.12·15-s + 0.250·16-s − 0.895i·17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.770 + 0.637i)\, \overline{\Lambda}(9-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s+4) \, L(s)\cr =\mathstrut & (-0.770 + 0.637i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(42\)    =    \(2 \cdot 3 \cdot 7\)
Sign: $-0.770 + 0.637i$
Analytic conductor: \(17.1099\)
Root analytic conductor: \(4.13641\)
Motivic weight: \(8\)
Rational: no
Arithmetic: yes
Character: $\chi_{42} (13, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 42,\ (\ :4),\ -0.770 + 0.637i)\)

Particular Values

\(L(\frac{9}{2})\) \(\approx\) \(0.198547 - 0.551490i\)
\(L(\frac12)\) \(\approx\) \(0.198547 - 0.551490i\)
\(L(5)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + 11.3T \)
3 \( 1 - 46.7iT \)
7 \( 1 + (-1.53e3 - 1.85e3i)T \)
good5 \( 1 + 1.21e3iT - 3.90e5T^{2} \)
11 \( 1 + 6.83e3T + 2.14e8T^{2} \)
13 \( 1 - 1.77e4iT - 8.15e8T^{2} \)
17 \( 1 + 7.47e4iT - 6.97e9T^{2} \)
19 \( 1 + 7.50e4iT - 1.69e10T^{2} \)
23 \( 1 + 4.11e5T + 7.83e10T^{2} \)
29 \( 1 - 2.38e5T + 5.00e11T^{2} \)
31 \( 1 + 1.56e6iT - 8.52e11T^{2} \)
37 \( 1 + 3.44e6T + 3.51e12T^{2} \)
41 \( 1 - 8.01e5iT - 7.98e12T^{2} \)
43 \( 1 - 2.39e6T + 1.16e13T^{2} \)
47 \( 1 + 3.96e6iT - 2.38e13T^{2} \)
53 \( 1 + 8.82e6T + 6.22e13T^{2} \)
59 \( 1 + 1.19e7iT - 1.46e14T^{2} \)
61 \( 1 - 6.09e6iT - 1.91e14T^{2} \)
67 \( 1 + 2.76e7T + 4.06e14T^{2} \)
71 \( 1 + 8.48e6T + 6.45e14T^{2} \)
73 \( 1 - 1.38e7iT - 8.06e14T^{2} \)
79 \( 1 - 4.60e7T + 1.51e15T^{2} \)
83 \( 1 - 7.71e7iT - 2.25e15T^{2} \)
89 \( 1 + 3.73e7iT - 3.93e15T^{2} \)
97 \( 1 + 1.35e7iT - 7.83e15T^{2} \)
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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

−13.78785992460355653654870624257, −12.30220323367851687137946761581, −11.49485118311993234409457487824, −9.701784413305692960605659377404, −8.888700005565506492997790374379, −7.997883413569091959042389583503, −5.59523430015502219688295618197, −4.52401488563609333711691818685, −1.95005557045804462401331159080, −0.26841445535521899606169678880, 1.83360804161583418563423225094, 3.34917538726892715585274155116, 6.13495406484733715243786425246, 7.28736142291895745859446482650, 8.087712677111518441025717131488, 10.41751111183242068980272590096, 10.62954655922615236893033723872, 12.08152229877127436800170477462, 13.87877108514525562969024921047, 14.60626407769845408480524530497

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