Properties

Label 2-26-13.9-c7-0-5
Degree $2$
Conductor $26$
Sign $-0.236 + 0.971i$
Analytic cond. $8.12201$
Root an. cond. $2.84991$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (4 − 6.92i)2-s + (35.5 − 61.6i)3-s + (−31.9 − 55.4i)4-s + 523.·5-s + (−284. − 492. i)6-s + (208. + 360. i)7-s − 511.·8-s + (−1.43e3 − 2.49e3i)9-s + (2.09e3 − 3.62e3i)10-s + (−1.71e3 + 2.96e3i)11-s − 4.55e3·12-s + (−6.74e3 + 4.15e3i)13-s + 3.33e3·14-s + (1.86e4 − 3.22e4i)15-s + (−2.04e3 + 3.54e3i)16-s + (3.26e3 + 5.66e3i)17-s + ⋯
L(s)  = 1  + (0.353 − 0.612i)2-s + (0.760 − 1.31i)3-s + (−0.249 − 0.433i)4-s + 1.87·5-s + (−0.537 − 0.931i)6-s + (0.229 + 0.397i)7-s − 0.353·8-s + (−0.657 − 1.13i)9-s + (0.662 − 1.14i)10-s + (−0.387 + 0.671i)11-s − 0.760·12-s + (−0.851 + 0.525i)13-s + 0.324·14-s + (1.42 − 2.46i)15-s + (−0.125 + 0.216i)16-s + (0.161 + 0.279i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 26 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.236 + 0.971i)\, \overline{\Lambda}(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 26 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & (-0.236 + 0.971i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(26\)    =    \(2 \cdot 13\)
Sign: $-0.236 + 0.971i$
Analytic conductor: \(8.12201\)
Root analytic conductor: \(2.84991\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: $\chi_{26} (9, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 26,\ (\ :7/2),\ -0.236 + 0.971i)\)

Particular Values

\(L(4)\) \(\approx\) \(1.86555 - 2.37452i\)
\(L(\frac12)\) \(\approx\) \(1.86555 - 2.37452i\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-4 + 6.92i)T \)
13 \( 1 + (6.74e3 - 4.15e3i)T \)
good3 \( 1 + (-35.5 + 61.6i)T + (-1.09e3 - 1.89e3i)T^{2} \)
5 \( 1 - 523.T + 7.81e4T^{2} \)
7 \( 1 + (-208. - 360. i)T + (-4.11e5 + 7.13e5i)T^{2} \)
11 \( 1 + (1.71e3 - 2.96e3i)T + (-9.74e6 - 1.68e7i)T^{2} \)
17 \( 1 + (-3.26e3 - 5.66e3i)T + (-2.05e8 + 3.55e8i)T^{2} \)
19 \( 1 + (1.39e4 + 2.42e4i)T + (-4.46e8 + 7.74e8i)T^{2} \)
23 \( 1 + (5.30e4 - 9.19e4i)T + (-1.70e9 - 2.94e9i)T^{2} \)
29 \( 1 + (3.42e4 - 5.93e4i)T + (-8.62e9 - 1.49e10i)T^{2} \)
31 \( 1 - 5.15e4T + 2.75e10T^{2} \)
37 \( 1 + (2.40e4 - 4.16e4i)T + (-4.74e10 - 8.22e10i)T^{2} \)
41 \( 1 + (-3.01e5 + 5.21e5i)T + (-9.73e10 - 1.68e11i)T^{2} \)
43 \( 1 + (4.58e5 + 7.93e5i)T + (-1.35e11 + 2.35e11i)T^{2} \)
47 \( 1 + 3.26e5T + 5.06e11T^{2} \)
53 \( 1 - 9.34e5T + 1.17e12T^{2} \)
59 \( 1 + (5.87e5 + 1.01e6i)T + (-1.24e12 + 2.15e12i)T^{2} \)
61 \( 1 + (-1.44e6 - 2.50e6i)T + (-1.57e12 + 2.72e12i)T^{2} \)
67 \( 1 + (1.59e5 - 2.75e5i)T + (-3.03e12 - 5.24e12i)T^{2} \)
71 \( 1 + (6.41e5 + 1.11e6i)T + (-4.54e12 + 7.87e12i)T^{2} \)
73 \( 1 + 1.67e6T + 1.10e13T^{2} \)
79 \( 1 + 8.09e6T + 1.92e13T^{2} \)
83 \( 1 - 5.57e6T + 2.71e13T^{2} \)
89 \( 1 + (3.93e6 - 6.82e6i)T + (-2.21e13 - 3.83e13i)T^{2} \)
97 \( 1 + (-3.40e6 - 5.89e6i)T + (-4.03e13 + 6.99e13i)T^{2} \)
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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

−14.84676666327333063445700580191, −13.83470799088299567448309680381, −13.18770264774338598207825048793, −12.12843413966603210069818228028, −10.08497043803827190675439014939, −8.942488827783357871327831757949, −7.00867061791101382846931839147, −5.46484886820953479772836985539, −2.38291324254866173764632379237, −1.74495065676387056838552167449, 2.71018029187727279853891285228, 4.67975183157922891483601731651, 6.01761739580206786286193250518, 8.311122336715776955996242379328, 9.695427781029161976108185641649, 10.40711909285565494612530268500, 13.01596632490984819616057486234, 14.21201292946650620119916019944, 14.65132698796591748108293531572, 16.25029011579572675279617308888

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