Properties

Label 2-42-1.1-c5-0-0
Degree $2$
Conductor $42$
Sign $1$
Analytic cond. $6.73612$
Root an. cond. $2.59540$
Motivic weight $5$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 4·2-s − 9·3-s + 16·4-s − 54·5-s + 36·6-s + 49·7-s − 64·8-s + 81·9-s + 216·10-s + 216·11-s − 144·12-s + 998·13-s − 196·14-s + 486·15-s + 256·16-s + 1.30e3·17-s − 324·18-s + 884·19-s − 864·20-s − 441·21-s − 864·22-s − 2.26e3·23-s + 576·24-s − 209·25-s − 3.99e3·26-s − 729·27-s + 784·28-s + ⋯
L(s)  = 1  − 0.707·2-s − 0.577·3-s + 1/2·4-s − 0.965·5-s + 0.408·6-s + 0.377·7-s − 0.353·8-s + 1/3·9-s + 0.683·10-s + 0.538·11-s − 0.288·12-s + 1.63·13-s − 0.267·14-s + 0.557·15-s + 1/4·16-s + 1.09·17-s − 0.235·18-s + 0.561·19-s − 0.482·20-s − 0.218·21-s − 0.380·22-s − 0.893·23-s + 0.204·24-s − 0.0668·25-s − 1.15·26-s − 0.192·27-s + 0.188·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(6-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s+5/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(42\)    =    \(2 \cdot 3 \cdot 7\)
Sign: $1$
Analytic conductor: \(6.73612\)
Root analytic conductor: \(2.59540\)
Motivic weight: \(5\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 42,\ (\ :5/2),\ 1)\)

Particular Values

\(L(3)\) \(\approx\) \(0.9035041258\)
\(L(\frac12)\) \(\approx\) \(0.9035041258\)
\(L(\frac{7}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + p^{2} T \)
3 \( 1 + p^{2} T \)
7 \( 1 - p^{2} T \)
good5 \( 1 + 54 T + p^{5} T^{2} \)
11 \( 1 - 216 T + p^{5} T^{2} \)
13 \( 1 - 998 T + p^{5} T^{2} \)
17 \( 1 - 1302 T + p^{5} T^{2} \)
19 \( 1 - 884 T + p^{5} T^{2} \)
23 \( 1 + 2268 T + p^{5} T^{2} \)
29 \( 1 + 1482 T + p^{5} T^{2} \)
31 \( 1 - 8360 T + p^{5} T^{2} \)
37 \( 1 + 4714 T + p^{5} T^{2} \)
41 \( 1 + 9786 T + p^{5} T^{2} \)
43 \( 1 - 452 p T + p^{5} T^{2} \)
47 \( 1 - 22200 T + p^{5} T^{2} \)
53 \( 1 - 26790 T + p^{5} T^{2} \)
59 \( 1 - 28092 T + p^{5} T^{2} \)
61 \( 1 + 38866 T + p^{5} T^{2} \)
67 \( 1 - 23948 T + p^{5} T^{2} \)
71 \( 1 + 20628 T + p^{5} T^{2} \)
73 \( 1 - 290 T + p^{5} T^{2} \)
79 \( 1 + 99544 T + p^{5} T^{2} \)
83 \( 1 - 19308 T + p^{5} T^{2} \)
89 \( 1 - 36390 T + p^{5} T^{2} \)
97 \( 1 + 79078 T + p^{5} T^{2} \)
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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

−15.47313583946692076142478319020, −13.91517915640706403416478175286, −12.09901367351987287270564556669, −11.45304040356271947065867993135, −10.25628162308257134178307377231, −8.622181411079888374791221407077, −7.51233742078421077201072399445, −5.94599798648278847718105300963, −3.85195247880333912368548057882, −1.01964620714483083984072115471, 1.01964620714483083984072115471, 3.85195247880333912368548057882, 5.94599798648278847718105300963, 7.51233742078421077201072399445, 8.622181411079888374791221407077, 10.25628162308257134178307377231, 11.45304040356271947065867993135, 12.09901367351987287270564556669, 13.91517915640706403416478175286, 15.47313583946692076142478319020

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