Properties

Label 2-261-29.21-c2-0-17
Degree $2$
Conductor $261$
Sign $0.405 + 0.914i$
Analytic cond. $7.11173$
Root an. cond. $2.66678$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−0.929 + 2.65i)2-s + (−3.06 − 2.44i)4-s + (−1.35 − 2.82i)5-s + (2.26 + 2.83i)7-s + (−0.186 + 0.117i)8-s + (8.75 − 0.986i)10-s + (−9.83 − 6.17i)11-s + (−18.5 + 4.23i)13-s + (−9.64 + 3.37i)14-s + (−3.62 − 15.8i)16-s + (12.3 − 12.3i)17-s + (−2.90 − 25.7i)19-s + (−2.73 + 11.9i)20-s + (25.5 − 20.3i)22-s + (−9.50 − 4.57i)23-s + ⋯
L(s)  = 1  + (−0.464 + 1.32i)2-s + (−0.766 − 0.611i)4-s + (−0.271 − 0.564i)5-s + (0.323 + 0.405i)7-s + (−0.0232 + 0.0146i)8-s + (0.875 − 0.0986i)10-s + (−0.893 − 0.561i)11-s + (−1.42 + 0.325i)13-s + (−0.688 + 0.240i)14-s + (−0.226 − 0.993i)16-s + (0.725 − 0.725i)17-s + (−0.152 − 1.35i)19-s + (−0.136 + 0.598i)20-s + (1.16 − 0.926i)22-s + (−0.413 − 0.198i)23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 261 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.405 + 0.914i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 261 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (0.405 + 0.914i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(261\)    =    \(3^{2} \cdot 29\)
Sign: $0.405 + 0.914i$
Analytic conductor: \(7.11173\)
Root analytic conductor: \(2.66678\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{261} (253, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 261,\ (\ :1),\ 0.405 + 0.914i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.240396 - 0.156410i\)
\(L(\frac12)\) \(\approx\) \(0.240396 - 0.156410i\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
29 \( 1 + (14.7 - 24.9i)T \)
good2 \( 1 + (0.929 - 2.65i)T + (-3.12 - 2.49i)T^{2} \)
5 \( 1 + (1.35 + 2.82i)T + (-15.5 + 19.5i)T^{2} \)
7 \( 1 + (-2.26 - 2.83i)T + (-10.9 + 47.7i)T^{2} \)
11 \( 1 + (9.83 + 6.17i)T + (52.4 + 109. i)T^{2} \)
13 \( 1 + (18.5 - 4.23i)T + (152. - 73.3i)T^{2} \)
17 \( 1 + (-12.3 + 12.3i)T - 289iT^{2} \)
19 \( 1 + (2.90 + 25.7i)T + (-351. + 80.3i)T^{2} \)
23 \( 1 + (9.50 + 4.57i)T + (329. + 413. i)T^{2} \)
31 \( 1 + (8.22 - 23.5i)T + (-751. - 599. i)T^{2} \)
37 \( 1 + (25.3 - 15.9i)T + (593. - 1.23e3i)T^{2} \)
41 \( 1 + (36.7 + 36.7i)T + 1.68e3iT^{2} \)
43 \( 1 + (-37.8 + 13.2i)T + (1.44e3 - 1.15e3i)T^{2} \)
47 \( 1 + (16.7 - 26.6i)T + (-958. - 1.99e3i)T^{2} \)
53 \( 1 + (-47.4 + 22.8i)T + (1.75e3 - 2.19e3i)T^{2} \)
59 \( 1 + 2.51T + 3.48e3T^{2} \)
61 \( 1 + (29.2 + 3.29i)T + (3.62e3 + 828. i)T^{2} \)
67 \( 1 + (127. + 29.0i)T + (4.04e3 + 1.94e3i)T^{2} \)
71 \( 1 + (73.2 - 16.7i)T + (4.54e3 - 2.18e3i)T^{2} \)
73 \( 1 + (-8.81 - 25.2i)T + (-4.16e3 + 3.32e3i)T^{2} \)
79 \( 1 + (-51.2 - 81.5i)T + (-2.70e3 + 5.62e3i)T^{2} \)
83 \( 1 + (1.49 - 1.87i)T + (-1.53e3 - 6.71e3i)T^{2} \)
89 \( 1 + (-28.8 + 82.3i)T + (-6.19e3 - 4.93e3i)T^{2} \)
97 \( 1 + (57.2 - 6.45i)T + (9.17e3 - 2.09e3i)T^{2} \)
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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

−11.75195258343982791590103358285, −10.40894773955759422157505118127, −9.182594118622543299060479615492, −8.575840516265755402127760912960, −7.59410187471965134864905305118, −6.87538002768938257480301517638, −5.37955134943330830657131813873, −4.91567181346562242086981816914, −2.71717879324192224517812890324, −0.16207533209569646781444653242, 1.81154507365738388411937312876, 3.01423772754145348737628171248, 4.21171923931647232162082888826, 5.74396933328010453450118989398, 7.38471096034761866273323127031, 8.034404237823693166819516613178, 9.556794400479040659356901154446, 10.26414381934771937244169529571, 10.74732479229704638427079443107, 11.92240859030753724568030869280

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