Properties

Label 2-7e2-49.8-c3-0-0
Degree $2$
Conductor $49$
Sign $0.218 - 0.975i$
Analytic cond. $2.89109$
Root an. cond. $1.70032$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−3.44 − 4.31i)2-s + (3.65 − 1.75i)3-s + (−5.00 + 21.9i)4-s + (−12.6 + 6.11i)5-s + (−20.1 − 9.70i)6-s + (−15.1 + 10.6i)7-s + (72.0 − 34.6i)8-s + (−6.59 + 8.26i)9-s + (70.1 + 33.7i)10-s + (−21.5 − 27.0i)11-s + (20.2 + 88.8i)12-s + (11.5 + 14.4i)13-s + (98.0 + 28.8i)14-s + (−35.6 + 44.6i)15-s + (−235. − 113. i)16-s + (−12.0 − 52.8i)17-s + ⋯
L(s)  = 1  + (−1.21 − 1.52i)2-s + (0.702 − 0.338i)3-s + (−0.625 + 2.74i)4-s + (−1.13 + 0.546i)5-s + (−1.37 − 0.660i)6-s + (−0.818 + 0.573i)7-s + (3.18 − 1.53i)8-s + (−0.244 + 0.306i)9-s + (2.21 + 1.06i)10-s + (−0.591 − 0.741i)11-s + (0.487 + 2.13i)12-s + (0.245 + 0.308i)13-s + (1.87 + 0.551i)14-s + (−0.613 + 0.768i)15-s + (−3.68 − 1.77i)16-s + (−0.172 − 0.754i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.218 - 0.975i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (0.218 - 0.975i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $0.218 - 0.975i$
Analytic conductor: \(2.89109\)
Root analytic conductor: \(1.70032\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{49} (8, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :3/2),\ 0.218 - 0.975i)\)

Particular Values

\(L(2)\) \(\approx\) \(0.116824 + 0.0935734i\)
\(L(\frac12)\) \(\approx\) \(0.116824 + 0.0935734i\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 + (15.1 - 10.6i)T \)
good2 \( 1 + (3.44 + 4.31i)T + (-1.78 + 7.79i)T^{2} \)
3 \( 1 + (-3.65 + 1.75i)T + (16.8 - 21.1i)T^{2} \)
5 \( 1 + (12.6 - 6.11i)T + (77.9 - 97.7i)T^{2} \)
11 \( 1 + (21.5 + 27.0i)T + (-296. + 1.29e3i)T^{2} \)
13 \( 1 + (-11.5 - 14.4i)T + (-488. + 2.14e3i)T^{2} \)
17 \( 1 + (12.0 + 52.8i)T + (-4.42e3 + 2.13e3i)T^{2} \)
19 \( 1 + 61.4T + 6.85e3T^{2} \)
23 \( 1 + (20.4 - 89.5i)T + (-1.09e4 - 5.27e3i)T^{2} \)
29 \( 1 + (-1.60 - 7.01i)T + (-2.19e4 + 1.05e4i)T^{2} \)
31 \( 1 + 58.2T + 2.97e4T^{2} \)
37 \( 1 + (4.07 + 17.8i)T + (-4.56e4 + 2.19e4i)T^{2} \)
41 \( 1 + (-282. + 136. i)T + (4.29e4 - 5.38e4i)T^{2} \)
43 \( 1 + (-51.7 - 24.8i)T + (4.95e4 + 6.21e4i)T^{2} \)
47 \( 1 + (208. + 261. i)T + (-2.31e4 + 1.01e5i)T^{2} \)
53 \( 1 + (94.1 - 412. i)T + (-1.34e5 - 6.45e4i)T^{2} \)
59 \( 1 + (629. + 303. i)T + (1.28e5 + 1.60e5i)T^{2} \)
61 \( 1 + (-89.6 - 392. i)T + (-2.04e5 + 9.84e4i)T^{2} \)
67 \( 1 - 359.T + 3.00e5T^{2} \)
71 \( 1 + (-40.7 + 178. i)T + (-3.22e5 - 1.55e5i)T^{2} \)
73 \( 1 + (357. - 448. i)T + (-8.65e4 - 3.79e5i)T^{2} \)
79 \( 1 - 654.T + 4.93e5T^{2} \)
83 \( 1 + (286. - 359. i)T + (-1.27e5 - 5.57e5i)T^{2} \)
89 \( 1 + (388. - 487. i)T + (-1.56e5 - 6.87e5i)T^{2} \)
97 \( 1 + 388.T + 9.12e5T^{2} \)
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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

−15.67298283250756264970908167617, −13.73579456090224470246690592308, −12.70580821782936775787853705965, −11.55170106835145940101064126595, −10.79220632291878478961933250411, −9.286744576069170791686990780983, −8.345471402664486830451233347958, −7.39016525867902903284034624425, −3.56194916169758727023895356419, −2.56492400804199397613121143487, 0.14969318129018350600145584471, 4.34631750705223010443515133703, 6.33966472510789972750561982097, 7.72257488364271521802376768972, 8.480299946321708623788092564291, 9.566675160622143820722467402435, 10.66686199701311707844479072858, 12.86409583207845399610080714581, 14.41889690264277349714479846300, 15.30708779746486047638903806359

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