Properties

Label 2-420-5.4-c1-0-1
Degree $2$
Conductor $420$
Sign $0.894 - 0.447i$
Analytic cond. $3.35371$
Root an. cond. $1.83131$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + i·3-s + (2 − i)5-s + i·7-s − 9-s + 4·11-s − 2i·13-s + (1 + 2i)15-s + 2i·17-s + 2·19-s − 21-s + 6i·23-s + (3 − 4i)25-s i·27-s − 6·29-s + 6·31-s + ⋯
L(s)  = 1  + 0.577i·3-s + (0.894 − 0.447i)5-s + 0.377i·7-s − 0.333·9-s + 1.20·11-s − 0.554i·13-s + (0.258 + 0.516i)15-s + 0.485i·17-s + 0.458·19-s − 0.218·21-s + 1.25i·23-s + (0.600 − 0.800i)25-s − 0.192i·27-s − 1.11·29-s + 1.07·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 420 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.894 - 0.447i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 420 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.894 - 0.447i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(420\)    =    \(2^{2} \cdot 3 \cdot 5 \cdot 7\)
Sign: $0.894 - 0.447i$
Analytic conductor: \(3.35371\)
Root analytic conductor: \(1.83131\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{420} (169, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 420,\ (\ :1/2),\ 0.894 - 0.447i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.61716 + 0.381761i\)
\(L(\frac12)\) \(\approx\) \(1.61716 + 0.381761i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - iT \)
5 \( 1 + (-2 + i)T \)
7 \( 1 - iT \)
good11 \( 1 - 4T + 11T^{2} \)
13 \( 1 + 2iT - 13T^{2} \)
17 \( 1 - 2iT - 17T^{2} \)
19 \( 1 - 2T + 19T^{2} \)
23 \( 1 - 6iT - 23T^{2} \)
29 \( 1 + 6T + 29T^{2} \)
31 \( 1 - 6T + 31T^{2} \)
37 \( 1 + 4iT - 37T^{2} \)
41 \( 1 + 41T^{2} \)
43 \( 1 - 4iT - 43T^{2} \)
47 \( 1 - 4iT - 47T^{2} \)
53 \( 1 - 2iT - 53T^{2} \)
59 \( 1 + 4T + 59T^{2} \)
61 \( 1 + 2T + 61T^{2} \)
67 \( 1 + 12iT - 67T^{2} \)
71 \( 1 + 8T + 71T^{2} \)
73 \( 1 + 14iT - 73T^{2} \)
79 \( 1 + 16T + 79T^{2} \)
83 \( 1 + 16iT - 83T^{2} \)
89 \( 1 + 16T + 89T^{2} \)
97 \( 1 + 14iT - 97T^{2} \)
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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

−11.24722093977470854702683840386, −10.18195855850965947459725594849, −9.400540590551782899011016515411, −8.880243444565989468907626311507, −7.66657305421981843105497912975, −6.23716413693100665806605864196, −5.59208663617913350095037933104, −4.46122508475892966967188002404, −3.19954430820490038521196244837, −1.57802764791372544356520025922, 1.39269080588721714232351349370, 2.72924911726652814890585679813, 4.17941370642037650400736746198, 5.57745094941215196916442241126, 6.64186150562658124434502543287, 7.06270346737010173050421499299, 8.456344019713605042974294084634, 9.373846238631850193035615484065, 10.15108226649660678129842973681, 11.24019793743423503275799088355

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