Properties

Label 2-261-29.18-c2-0-2
Degree $2$
Conductor $261$
Sign $-0.443 + 0.896i$
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  + (1.23 + 3.54i)2-s + (−7.88 + 6.28i)4-s + (0.825 − 1.71i)5-s + (−2.97 + 3.72i)7-s + (−19.3 − 12.1i)8-s + (7.09 + 0.798i)10-s + (−8.99 + 5.65i)11-s + (−14.5 − 3.31i)13-s + (−16.8 − 5.91i)14-s + (10.0 − 44.1i)16-s + (1.89 + 1.89i)17-s + (−0.860 + 7.63i)19-s + (4.26 + 18.6i)20-s + (−31.1 − 24.8i)22-s + (12.8 − 6.21i)23-s + ⋯
L(s)  = 1  + (0.619 + 1.77i)2-s + (−1.97 + 1.57i)4-s + (0.165 − 0.342i)5-s + (−0.424 + 0.532i)7-s + (−2.41 − 1.51i)8-s + (0.709 + 0.0798i)10-s + (−0.818 + 0.514i)11-s + (−1.11 − 0.254i)13-s + (−1.20 − 0.422i)14-s + (0.629 − 2.75i)16-s + (0.111 + 0.111i)17-s + (−0.0452 + 0.401i)19-s + (0.213 + 0.934i)20-s + (−1.41 − 1.13i)22-s + (0.560 − 0.270i)23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 261 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.443 + 0.896i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 261 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.443 + 0.896i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(261\)    =    \(3^{2} \cdot 29\)
Sign: $-0.443 + 0.896i$
Analytic conductor: \(7.11173\)
Root analytic conductor: \(2.66678\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{261} (163, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 261,\ (\ :1),\ -0.443 + 0.896i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.574271 - 0.924880i\)
\(L(\frac12)\) \(\approx\) \(0.574271 - 0.924880i\)
\(L(2)\) 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 \( 1 + (-13.6 - 25.5i)T \)
good2 \( 1 + (-1.23 - 3.54i)T + (-3.12 + 2.49i)T^{2} \)
5 \( 1 + (-0.825 + 1.71i)T + (-15.5 - 19.5i)T^{2} \)
7 \( 1 + (2.97 - 3.72i)T + (-10.9 - 47.7i)T^{2} \)
11 \( 1 + (8.99 - 5.65i)T + (52.4 - 109. i)T^{2} \)
13 \( 1 + (14.5 + 3.31i)T + (152. + 73.3i)T^{2} \)
17 \( 1 + (-1.89 - 1.89i)T + 289iT^{2} \)
19 \( 1 + (0.860 - 7.63i)T + (-351. - 80.3i)T^{2} \)
23 \( 1 + (-12.8 + 6.21i)T + (329. - 413. i)T^{2} \)
31 \( 1 + (5.75 + 16.4i)T + (-751. + 599. i)T^{2} \)
37 \( 1 + (-47.2 - 29.6i)T + (593. + 1.23e3i)T^{2} \)
41 \( 1 + (52.6 - 52.6i)T - 1.68e3iT^{2} \)
43 \( 1 + (57.3 + 20.0i)T + (1.44e3 + 1.15e3i)T^{2} \)
47 \( 1 + (-14.1 - 22.4i)T + (-958. + 1.99e3i)T^{2} \)
53 \( 1 + (-7.05 - 3.39i)T + (1.75e3 + 2.19e3i)T^{2} \)
59 \( 1 - 16.5T + 3.48e3T^{2} \)
61 \( 1 + (-45.2 + 5.09i)T + (3.62e3 - 828. i)T^{2} \)
67 \( 1 + (9.62 - 2.19i)T + (4.04e3 - 1.94e3i)T^{2} \)
71 \( 1 + (70.8 + 16.1i)T + (4.54e3 + 2.18e3i)T^{2} \)
73 \( 1 + (-26.3 + 75.3i)T + (-4.16e3 - 3.32e3i)T^{2} \)
79 \( 1 + (34.8 - 55.4i)T + (-2.70e3 - 5.62e3i)T^{2} \)
83 \( 1 + (29.5 + 37.0i)T + (-1.53e3 + 6.71e3i)T^{2} \)
89 \( 1 + (8.20 + 23.4i)T + (-6.19e3 + 4.93e3i)T^{2} \)
97 \( 1 + (-77.3 - 8.72i)T + (9.17e3 + 2.09e3i)T^{2} \)
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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

−12.89785131995133564776254248001, −11.97532222977275940980606603541, −10.11448929474902234778483976475, −9.186770999472456722796610110493, −8.210139679175815600461153668845, −7.35484604590792142703810026944, −6.39833202085295085853670368988, −5.29402230969989613587429959935, −4.71312211274410255128017458083, −3.03184594651606586040467246315, 0.44402688051715337043425495504, 2.32991657865510172337993667582, 3.24232220191489512077728926497, 4.51132707594662109899153549766, 5.50429255393667395616470784237, 7.00279394729976314074261177474, 8.601186996237721769807095423660, 9.822132348100191783709047181758, 10.27215731949898598600491323286, 11.16499346581572382306900731024

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