Properties

Label 2-42-21.17-c3-0-7
Degree $2$
Conductor $42$
Sign $-0.320 + 0.947i$
Analytic cond. $2.47808$
Root an. cond. $1.57419$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

Related objects

Downloads

Learn more

Normalization:  

Dirichlet series

L(s)  = 1  + (1.73 − i)2-s + (−4.87 − 1.79i)3-s + (1.99 − 3.46i)4-s + (−9.90 − 17.1i)5-s + (−10.2 + 1.76i)6-s + (18.4 + 1.84i)7-s − 7.99i·8-s + (20.5 + 17.5i)9-s + (−34.3 − 19.8i)10-s + (−4.28 − 2.47i)11-s + (−15.9 + 13.2i)12-s + 17.7i·13-s + (33.7 − 15.2i)14-s + (17.4 + 101. i)15-s + (−8 − 13.8i)16-s + (−0.947 + 1.64i)17-s + ⋯
L(s)  = 1  + (0.612 − 0.353i)2-s + (−0.938 − 0.345i)3-s + (0.249 − 0.433i)4-s + (−0.885 − 1.53i)5-s + (−0.696 + 0.120i)6-s + (0.995 + 0.0998i)7-s − 0.353i·8-s + (0.761 + 0.648i)9-s + (−1.08 − 0.626i)10-s + (−0.117 − 0.0678i)11-s + (−0.384 + 0.319i)12-s + 0.378i·13-s + (0.644 − 0.290i)14-s + (0.301 + 1.74i)15-s + (−0.125 − 0.216i)16-s + (−0.0135 + 0.0234i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.320 + 0.947i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.320 + 0.947i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(42\)    =    \(2 \cdot 3 \cdot 7\)
Sign: $-0.320 + 0.947i$
Analytic conductor: \(2.47808\)
Root analytic conductor: \(1.57419\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{42} (17, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 42,\ (\ :3/2),\ -0.320 + 0.947i)\)

Particular Values

\(L(2)\) \(\approx\) \(0.738153 - 1.02884i\)
\(L(\frac12)\) \(\approx\) \(0.738153 - 1.02884i\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-1.73 + i)T \)
3 \( 1 + (4.87 + 1.79i)T \)
7 \( 1 + (-18.4 - 1.84i)T \)
good5 \( 1 + (9.90 + 17.1i)T + (-62.5 + 108. i)T^{2} \)
11 \( 1 + (4.28 + 2.47i)T + (665.5 + 1.15e3i)T^{2} \)
13 \( 1 - 17.7iT - 2.19e3T^{2} \)
17 \( 1 + (0.947 - 1.64i)T + (-2.45e3 - 4.25e3i)T^{2} \)
19 \( 1 + (-83.9 + 48.4i)T + (3.42e3 - 5.94e3i)T^{2} \)
23 \( 1 + (-135. + 78.4i)T + (6.08e3 - 1.05e4i)T^{2} \)
29 \( 1 - 92.0iT - 2.43e4T^{2} \)
31 \( 1 + (-67.3 - 38.8i)T + (1.48e4 + 2.57e4i)T^{2} \)
37 \( 1 + (124. + 215. i)T + (-2.53e4 + 4.38e4i)T^{2} \)
41 \( 1 + 343.T + 6.89e4T^{2} \)
43 \( 1 + 24.5T + 7.95e4T^{2} \)
47 \( 1 + (-235. - 407. i)T + (-5.19e4 + 8.99e4i)T^{2} \)
53 \( 1 + (-344. - 199. i)T + (7.44e4 + 1.28e5i)T^{2} \)
59 \( 1 + (335. - 581. i)T + (-1.02e5 - 1.77e5i)T^{2} \)
61 \( 1 + (273. - 158. i)T + (1.13e5 - 1.96e5i)T^{2} \)
67 \( 1 + (-116. + 202. i)T + (-1.50e5 - 2.60e5i)T^{2} \)
71 \( 1 - 152. iT - 3.57e5T^{2} \)
73 \( 1 + (-539. - 311. i)T + (1.94e5 + 3.36e5i)T^{2} \)
79 \( 1 + (151. + 261. i)T + (-2.46e5 + 4.26e5i)T^{2} \)
83 \( 1 - 856.T + 5.71e5T^{2} \)
89 \( 1 + (453. + 785. i)T + (-3.52e5 + 6.10e5i)T^{2} \)
97 \( 1 + 70.3iT - 9.12e5T^{2} \)
show more
show less
   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−15.34693247439653516844288141962, −13.67254036410809843171702437448, −12.51490874447853927046359368202, −11.84274843740368204845141486128, −10.90883772131594391175142533572, −8.855306474268862164708792042740, −7.37638031728224413032801274010, −5.29298407452059874222155678853, −4.53216331203246032270720255213, −1.10176397680589148327476835046, 3.55601823750063915409284878848, 5.17276249205504887763031714982, 6.78053219702800546221235159019, 7.79498094035497203213249681492, 10.31112279243360711403167650827, 11.32428081519054204532085476612, 11.94890517629282982176772803076, 13.80138177063983096548868457393, 15.11068880050255514369398704534, 15.41970553826490960397126000022

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