Properties

Label 2-42-7.5-c2-0-1
Degree $2$
Conductor $42$
Sign $0.603 + 0.797i$
Analytic cond. $1.14441$
Root an. cond. $1.06977$
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  + (0.707 − 1.22i)2-s + (1.5 − 0.866i)3-s + (−0.999 − 1.73i)4-s + (−1.24 − 0.717i)5-s − 2.44i·6-s + (1.74 + 6.77i)7-s − 2.82·8-s + (1.5 − 2.59i)9-s + (−1.75 + 1.01i)10-s + (−3 − 5.19i)11-s + (−2.99 − 1.73i)12-s + 21.3i·13-s + (9.53 + 2.65i)14-s − 2.48·15-s + (−2.00 + 3.46i)16-s + (−7.75 + 4.47i)17-s + ⋯
L(s)  = 1  + (0.353 − 0.612i)2-s + (0.5 − 0.288i)3-s + (−0.249 − 0.433i)4-s + (−0.248 − 0.143i)5-s − 0.408i·6-s + (0.248 + 0.968i)7-s − 0.353·8-s + (0.166 − 0.288i)9-s + (−0.175 + 0.101i)10-s + (−0.272 − 0.472i)11-s + (−0.249 − 0.144i)12-s + 1.64i·13-s + (0.681 + 0.189i)14-s − 0.165·15-s + (−0.125 + 0.216i)16-s + (−0.456 + 0.263i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.603 + 0.797i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (0.603 + 0.797i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(42\)    =    \(2 \cdot 3 \cdot 7\)
Sign: $0.603 + 0.797i$
Analytic conductor: \(1.14441\)
Root analytic conductor: \(1.06977\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{42} (19, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 42,\ (\ :1),\ 0.603 + 0.797i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(1.21199 - 0.602257i\)
\(L(\frac12)\) \(\approx\) \(1.21199 - 0.602257i\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-0.707 + 1.22i)T \)
3 \( 1 + (-1.5 + 0.866i)T \)
7 \( 1 + (-1.74 - 6.77i)T \)
good5 \( 1 + (1.24 + 0.717i)T + (12.5 + 21.6i)T^{2} \)
11 \( 1 + (3 + 5.19i)T + (-60.5 + 104. i)T^{2} \)
13 \( 1 - 21.3iT - 169T^{2} \)
17 \( 1 + (7.75 - 4.47i)T + (144.5 - 250. i)T^{2} \)
19 \( 1 + (6.25 + 3.61i)T + (180.5 + 312. i)T^{2} \)
23 \( 1 + (-18.7 + 32.4i)T + (-264.5 - 458. i)T^{2} \)
29 \( 1 + 33.9T + 841T^{2} \)
31 \( 1 + (-38.2 + 22.0i)T + (480.5 - 832. i)T^{2} \)
37 \( 1 + (-13.9 + 24.2i)T + (-684.5 - 1.18e3i)T^{2} \)
41 \( 1 - 54.8iT - 1.68e3T^{2} \)
43 \( 1 + 1.48T + 1.84e3T^{2} \)
47 \( 1 + (37.2 + 21.5i)T + (1.10e3 + 1.91e3i)T^{2} \)
53 \( 1 + (-42.7 - 74.0i)T + (-1.40e3 + 2.43e3i)T^{2} \)
59 \( 1 + (35.6 - 20.6i)T + (1.74e3 - 3.01e3i)T^{2} \)
61 \( 1 + (1.02 + 0.594i)T + (1.86e3 + 3.22e3i)T^{2} \)
67 \( 1 + (2.19 + 3.80i)T + (-2.24e3 + 3.88e3i)T^{2} \)
71 \( 1 - 137.T + 5.04e3T^{2} \)
73 \( 1 + (-68.3 + 39.4i)T + (2.66e3 - 4.61e3i)T^{2} \)
79 \( 1 + (49.1 - 85.1i)T + (-3.12e3 - 5.40e3i)T^{2} \)
83 \( 1 + 110. iT - 6.88e3T^{2} \)
89 \( 1 + (18 + 10.3i)T + (3.96e3 + 6.85e3i)T^{2} \)
97 \( 1 - 10.9iT - 9.40e3T^{2} \)
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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

−15.32746647442409093298588963826, −14.36868209313906445850573605914, −13.22394117790519796923113074819, −12.10140574466711341635237200530, −11.12821572458445703318137204726, −9.346296849718374923314698171812, −8.364627548432850734657708634602, −6.35902541952197033626076331665, −4.42902515379082659072706649281, −2.36411800528140250691883631837, 3.52432439487018561702569581882, 5.15068531751407392523279398199, 7.20074082677624703085269624357, 8.118739712697830033142099782363, 9.815225387421475556026287969762, 11.09659642757673927786941720914, 12.89615350901325075273758591133, 13.71787695716482870216919478307, 15.05082933801931836451444588009, 15.58040436703246579004146548584

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