Properties

Label 2-855-285.227-c0-0-2
Degree $2$
Conductor $855$
Sign $0.374 + 0.927i$
Analytic cond. $0.426700$
Root an. cond. $0.653223$
Motivic weight $0$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  i·4-s + (0.707 + 0.707i)5-s + (−1 − i)7-s − 1.41i·11-s − 16-s i·19-s + (0.707 − 0.707i)20-s + (1.41 + 1.41i)23-s + 1.00i·25-s + (−1 + i)28-s − 1.41i·35-s + (1 − i)43-s − 1.41·44-s + (−1.41 + 1.41i)47-s + i·49-s + ⋯
L(s)  = 1  i·4-s + (0.707 + 0.707i)5-s + (−1 − i)7-s − 1.41i·11-s − 16-s i·19-s + (0.707 − 0.707i)20-s + (1.41 + 1.41i)23-s + 1.00i·25-s + (−1 + i)28-s − 1.41i·35-s + (1 − i)43-s − 1.41·44-s + (−1.41 + 1.41i)47-s + i·49-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 855 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.374 + 0.927i)\, \overline{\Lambda}(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 855 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.374 + 0.927i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(855\)    =    \(3^{2} \cdot 5 \cdot 19\)
Sign: $0.374 + 0.927i$
Analytic conductor: \(0.426700\)
Root analytic conductor: \(0.653223\)
Motivic weight: \(0\)
Rational: no
Arithmetic: yes
Character: $\chi_{855} (512, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 855,\ (\ :0),\ 0.374 + 0.927i)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.9755341045\)
\(L(\frac12)\) \(\approx\) \(0.9755341045\)
\(L(1)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
5 \( 1 + (-0.707 - 0.707i)T \)
19 \( 1 + iT \)
good2 \( 1 + iT^{2} \)
7 \( 1 + (1 + i)T + iT^{2} \)
11 \( 1 + 1.41iT - T^{2} \)
13 \( 1 + iT^{2} \)
17 \( 1 - iT^{2} \)
23 \( 1 + (-1.41 - 1.41i)T + iT^{2} \)
29 \( 1 - T^{2} \)
31 \( 1 - T^{2} \)
37 \( 1 - iT^{2} \)
41 \( 1 + T^{2} \)
43 \( 1 + (-1 + i)T - iT^{2} \)
47 \( 1 + (1.41 - 1.41i)T - iT^{2} \)
53 \( 1 - iT^{2} \)
59 \( 1 - T^{2} \)
61 \( 1 - 2T + T^{2} \)
67 \( 1 - iT^{2} \)
71 \( 1 + T^{2} \)
73 \( 1 + (1 - i)T - iT^{2} \)
79 \( 1 + T^{2} \)
83 \( 1 + iT^{2} \)
89 \( 1 - T^{2} \)
97 \( 1 - iT^{2} \)
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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

−10.19574699429452506990329368258, −9.547396638742537849976681641996, −8.873644172257533771713249443360, −7.31780188478307991858998662991, −6.69683490653387019619337918651, −5.95762773566764123329529615527, −5.14362758230769134078721484760, −3.64900819978712373072822762962, −2.75184923333917728736360534650, −1.04879198636909619473240441296, 2.07441109748410964014599822809, 2.98062933772815863863763820858, 4.29713547017525582512552863543, 5.19409813399229753798455324267, 6.31225992798739807931633303070, 7.02905413148285075207399633218, 8.199622589531863281727206494030, 8.908905916114799719742790665966, 9.563061340608739385618638598254, 10.27070526185304782205218431523

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