Properties

Label 2-2646-21.20-c1-0-1
Degree $2$
Conductor $2646$
Sign $-0.912 - 0.409i$
Analytic cond. $21.1284$
Root an. cond. $4.59656$
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·2-s − 4-s − 3.57·5-s i·8-s − 3.57i·10-s − 5.52i·11-s − 6.91i·13-s + 16-s − 2.44·17-s + 8.16i·19-s + 3.57·20-s + 5.52·22-s − 3.08i·23-s + 7.81·25-s + 6.91·26-s + ⋯
L(s)  = 1  + 0.707i·2-s − 0.5·4-s − 1.60·5-s − 0.353i·8-s − 1.13i·10-s − 1.66i·11-s − 1.91i·13-s + 0.250·16-s − 0.594·17-s + 1.87i·19-s + 0.800·20-s + 1.17·22-s − 0.644i·23-s + 1.56·25-s + 1.35·26-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2646 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.912 - 0.409i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2646 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.912 - 0.409i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2646\)    =    \(2 \cdot 3^{3} \cdot 7^{2}\)
Sign: $-0.912 - 0.409i$
Analytic conductor: \(21.1284\)
Root analytic conductor: \(4.59656\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{2646} (2645, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 2646,\ (\ :1/2),\ -0.912 - 0.409i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.2440554585\)
\(L(\frac12)\) \(\approx\) \(0.2440554585\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - iT \)
3 \( 1 \)
7 \( 1 \)
good5 \( 1 + 3.57T + 5T^{2} \)
11 \( 1 + 5.52iT - 11T^{2} \)
13 \( 1 + 6.91iT - 13T^{2} \)
17 \( 1 + 2.44T + 17T^{2} \)
19 \( 1 - 8.16iT - 19T^{2} \)
23 \( 1 + 3.08iT - 23T^{2} \)
29 \( 1 - 5.66iT - 29T^{2} \)
31 \( 1 - 0.400iT - 31T^{2} \)
37 \( 1 - 5.79T + 37T^{2} \)
41 \( 1 + 5.49T + 41T^{2} \)
43 \( 1 + 2.95T + 43T^{2} \)
47 \( 1 + 0.0958T + 47T^{2} \)
53 \( 1 + 5.17iT - 53T^{2} \)
59 \( 1 + 6.38T + 59T^{2} \)
61 \( 1 - 7.06iT - 61T^{2} \)
67 \( 1 + 1.45T + 67T^{2} \)
71 \( 1 - 8.77iT - 71T^{2} \)
73 \( 1 + 0.679iT - 73T^{2} \)
79 \( 1 + 6.43T + 79T^{2} \)
83 \( 1 + 1.64T + 83T^{2} \)
89 \( 1 + 12.1T + 89T^{2} \)
97 \( 1 - 11.3iT - 97T^{2} \)
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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

−8.498793309977468897414806257656, −8.449914017536942432296442010296, −7.83893065097917760038413393967, −7.05679363899853625208377394583, −6.02935913846586736320476614082, −5.48960525458361975106486418507, −4.44332239692536639844392036236, −3.51297256755810790007856082304, −3.11618819490528918664994925440, −0.916265576618092875501930329933, 0.10558362514160779964667036656, 1.72871522719735361648903209046, 2.66445940771793337585772186843, 3.85201558737977384644231623290, 4.56090225739139885209959107607, 4.72114451060250896238421804594, 6.50310709382690956098163194673, 7.15171780041527707280569556893, 7.68505138112862196082594509311, 8.724257402600005411471446937173

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