Properties

Label 2-13-13.7-c4-0-2
Degree $2$
Conductor $13$
Sign $0.994 + 0.100i$
Analytic cond. $1.34380$
Root an. cond. $1.15922$
Motivic weight $4$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (5.50 − 1.47i)2-s + (−4.28 + 7.41i)3-s + (14.3 − 8.26i)4-s + (−29.3 − 29.3i)5-s + (−12.6 + 47.1i)6-s + (45.8 + 12.2i)7-s + (2.12 − 2.12i)8-s + (3.84 + 6.66i)9-s + (−204. − 118. i)10-s + (11.4 + 42.7i)11-s + 141. i·12-s + (102. − 134. i)13-s + 270.·14-s + (343. − 91.9i)15-s + (−123. + 214. i)16-s + (−205. + 118. i)17-s + ⋯
L(s)  = 1  + (1.37 − 0.369i)2-s + (−0.475 + 0.823i)3-s + (0.894 − 0.516i)4-s + (−1.17 − 1.17i)5-s + (−0.351 + 1.31i)6-s + (0.935 + 0.250i)7-s + (0.0332 − 0.0332i)8-s + (0.0475 + 0.0823i)9-s + (−2.04 − 1.18i)10-s + (0.0946 + 0.353i)11-s + 0.982i·12-s + (0.605 − 0.795i)13-s + 1.38·14-s + (1.52 − 0.408i)15-s + (−0.482 + 0.836i)16-s + (−0.711 + 0.410i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 13 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.994 + 0.100i)\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 13 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & (0.994 + 0.100i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(13\)
Sign: $0.994 + 0.100i$
Analytic conductor: \(1.34380\)
Root analytic conductor: \(1.15922\)
Motivic weight: \(4\)
Rational: no
Arithmetic: yes
Character: $\chi_{13} (7, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 13,\ (\ :2),\ 0.994 + 0.100i)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(1.65990 - 0.0837813i\)
\(L(\frac12)\) \(\approx\) \(1.65990 - 0.0837813i\)
\(L(3)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad13 \( 1 + (-102. + 134. i)T \)
good2 \( 1 + (-5.50 + 1.47i)T + (13.8 - 8i)T^{2} \)
3 \( 1 + (4.28 - 7.41i)T + (-40.5 - 70.1i)T^{2} \)
5 \( 1 + (29.3 + 29.3i)T + 625iT^{2} \)
7 \( 1 + (-45.8 - 12.2i)T + (2.07e3 + 1.20e3i)T^{2} \)
11 \( 1 + (-11.4 - 42.7i)T + (-1.26e4 + 7.32e3i)T^{2} \)
17 \( 1 + (205. - 118. i)T + (4.17e4 - 7.23e4i)T^{2} \)
19 \( 1 + (-127. + 476. i)T + (-1.12e5 - 6.51e4i)T^{2} \)
23 \( 1 + (258. + 149. i)T + (1.39e5 + 2.42e5i)T^{2} \)
29 \( 1 + (-185. + 321. i)T + (-3.53e5 - 6.12e5i)T^{2} \)
31 \( 1 + (-625. - 625. i)T + 9.23e5iT^{2} \)
37 \( 1 + (-197. - 737. i)T + (-1.62e6 + 9.37e5i)T^{2} \)
41 \( 1 + (671. - 179. i)T + (2.44e6 - 1.41e6i)T^{2} \)
43 \( 1 + (-975. + 563. i)T + (1.70e6 - 2.96e6i)T^{2} \)
47 \( 1 + (-609. + 609. i)T - 4.87e6iT^{2} \)
53 \( 1 - 897.T + 7.89e6T^{2} \)
59 \( 1 + (-480. - 128. i)T + (1.04e7 + 6.05e6i)T^{2} \)
61 \( 1 + (124. + 215. i)T + (-6.92e6 + 1.19e7i)T^{2} \)
67 \( 1 + (-1.80e3 + 483. i)T + (1.74e7 - 1.00e7i)T^{2} \)
71 \( 1 + (-776. + 2.89e3i)T + (-2.20e7 - 1.27e7i)T^{2} \)
73 \( 1 + (6.81e3 - 6.81e3i)T - 2.83e7iT^{2} \)
79 \( 1 - 2.50e3T + 3.89e7T^{2} \)
83 \( 1 + (-7.97e3 - 7.97e3i)T + 4.74e7iT^{2} \)
89 \( 1 + (3.75e3 + 1.40e4i)T + (-5.43e7 + 3.13e7i)T^{2} \)
97 \( 1 + (1.91e3 - 7.15e3i)T + (-7.66e7 - 4.42e7i)T^{2} \)
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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

−19.90330862305989271587951651085, −17.52530044174192023585597087282, −15.83323541669197278185278872606, −15.22100009072340386880936576213, −13.29594821865098378244885757131, −11.99425421088550294031774996499, −11.03987864072151490560879448588, −8.437406892107221763961920381330, −5.10945015482522752527988371318, −4.27379297780314554209646544886, 3.95818339670424727662495914871, 6.33768271879002592537011020582, 7.55246064454937909715738361944, 11.28885408821161761358585395848, 12.03996313930667161738317240524, 13.78894193194284409114416631372, 14.75604539432826648476450321218, 15.99458961273522623666368085450, 18.07940775604753290433129974986, 18.95258277289422147584384739615

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