Properties

Label 2-7e2-7.2-c7-0-0
Degree $2$
Conductor $49$
Sign $0.947 + 0.318i$
Analytic cond. $15.3068$
Root an. cond. $3.91239$
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  + (−10.2 + 17.7i)2-s + (30.4 + 52.8i)3-s + (−144. − 250. i)4-s + (−133. + 232. i)5-s − 1.24e3·6-s + 3.30e3·8-s + (−765. + 1.32e3i)9-s + (−2.73e3 − 4.74e3i)10-s + (−3.42e3 − 5.93e3i)11-s + (8.83e3 − 1.53e4i)12-s + 553.·13-s − 1.63e4·15-s + (−1.52e4 + 2.64e4i)16-s + (−9.39e3 − 1.62e4i)17-s + (−1.56e4 − 2.71e4i)18-s + (−1.32e4 + 2.29e4i)19-s + ⋯
L(s)  = 1  + (−0.903 + 1.56i)2-s + (0.652 + 1.12i)3-s + (−1.13 − 1.96i)4-s + (−0.479 + 0.830i)5-s − 2.35·6-s + 2.28·8-s + (−0.350 + 0.606i)9-s + (−0.865 − 1.49i)10-s + (−0.776 − 1.34i)11-s + (1.47 − 2.55i)12-s + 0.0698·13-s − 1.24·15-s + (−0.930 + 1.61i)16-s + (−0.463 − 0.802i)17-s + (−0.632 − 1.09i)18-s + (−0.443 + 0.768i)19-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.947 + 0.318i)\, \overline{\Lambda}(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & (0.947 + 0.318i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $0.947 + 0.318i$
Analytic conductor: \(15.3068\)
Root analytic conductor: \(3.91239\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: $\chi_{49} (30, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :7/2),\ 0.947 + 0.318i)\)

Particular Values

\(L(4)\) \(\approx\) \(0.0258389 - 0.00422584i\)
\(L(\frac12)\) \(\approx\) \(0.0258389 - 0.00422584i\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 \)
good2 \( 1 + (10.2 - 17.7i)T + (-64 - 110. i)T^{2} \)
3 \( 1 + (-30.4 - 52.8i)T + (-1.09e3 + 1.89e3i)T^{2} \)
5 \( 1 + (133. - 232. i)T + (-3.90e4 - 6.76e4i)T^{2} \)
11 \( 1 + (3.42e3 + 5.93e3i)T + (-9.74e6 + 1.68e7i)T^{2} \)
13 \( 1 - 553.T + 6.27e7T^{2} \)
17 \( 1 + (9.39e3 + 1.62e4i)T + (-2.05e8 + 3.55e8i)T^{2} \)
19 \( 1 + (1.32e4 - 2.29e4i)T + (-4.46e8 - 7.74e8i)T^{2} \)
23 \( 1 + (-7.10e3 + 1.23e4i)T + (-1.70e9 - 2.94e9i)T^{2} \)
29 \( 1 + 2.18e5T + 1.72e10T^{2} \)
31 \( 1 + (-8.88e4 - 1.53e5i)T + (-1.37e10 + 2.38e10i)T^{2} \)
37 \( 1 + (8.33e4 - 1.44e5i)T + (-4.74e10 - 8.22e10i)T^{2} \)
41 \( 1 + 3.92e5T + 1.94e11T^{2} \)
43 \( 1 + 3.49e5T + 2.71e11T^{2} \)
47 \( 1 + (-4.99e5 + 8.64e5i)T + (-2.53e11 - 4.38e11i)T^{2} \)
53 \( 1 + (2.79e5 + 4.84e5i)T + (-5.87e11 + 1.01e12i)T^{2} \)
59 \( 1 + (1.43e6 + 2.47e6i)T + (-1.24e12 + 2.15e12i)T^{2} \)
61 \( 1 + (-4.02e5 + 6.96e5i)T + (-1.57e12 - 2.72e12i)T^{2} \)
67 \( 1 + (5.05e5 + 8.75e5i)T + (-3.03e12 + 5.24e12i)T^{2} \)
71 \( 1 - 1.38e6T + 9.09e12T^{2} \)
73 \( 1 + (-2.92e5 - 5.06e5i)T + (-5.52e12 + 9.56e12i)T^{2} \)
79 \( 1 + (1.89e6 - 3.27e6i)T + (-9.60e12 - 1.66e13i)T^{2} \)
83 \( 1 + 3.66e6T + 2.71e13T^{2} \)
89 \( 1 + (-4.60e6 + 7.98e6i)T + (-2.21e13 - 3.83e13i)T^{2} \)
97 \( 1 + 8.21e6T + 8.07e13T^{2} \)
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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

−15.40579491138323382651107718229, −14.63910114618427813874645732769, −13.71203851700092888583721872620, −11.00631019330939246569901621611, −10.08588764188711041143528742711, −8.893321073349030487282890295195, −8.046146071402430141360534876232, −6.71819331487059506239527469074, −5.20691687935590548849846769783, −3.39485994904492190369169001129, 0.01320323755280521912318816234, 1.49939679535123775563189655975, 2.48652988545325765918896121454, 4.33652367399940888884472520201, 7.41172828300296364631579352713, 8.293799247004782825243085211271, 9.272540044940082332469582305998, 10.65182219876307935276517950990, 12.00694088391867019795561898244, 12.83601175339037221209736752854

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