Properties

Label 2-7-7.4-c11-0-1
Degree $2$
Conductor $7$
Sign $-0.889 - 0.457i$
Analytic cond. $5.37840$
Root an. cond. $2.31913$
Motivic weight $11$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (37.0 + 64.1i)2-s + (−82.0 + 142. i)3-s + (−1.71e3 + 2.97e3i)4-s + (1.67e3 + 2.89e3i)5-s − 1.21e4·6-s + (−2.63e4 − 3.57e4i)7-s − 1.02e5·8-s + (7.51e4 + 1.30e5i)9-s + (−1.23e5 + 2.14e5i)10-s + (−1.78e5 + 3.09e5i)11-s + (−2.81e5 − 4.87e5i)12-s + 2.06e6·13-s + (1.31e6 − 3.01e6i)14-s − 5.47e5·15-s + (−2.77e5 − 4.80e5i)16-s + (1.53e6 − 2.65e6i)17-s + ⋯
L(s)  = 1  + (0.817 + 1.41i)2-s + (−0.194 + 0.337i)3-s + (−0.837 + 1.45i)4-s + (0.239 + 0.414i)5-s − 0.637·6-s + (−0.593 − 0.804i)7-s − 1.10·8-s + (0.424 + 0.734i)9-s + (−0.390 + 0.677i)10-s + (−0.334 + 0.578i)11-s + (−0.326 − 0.565i)12-s + 1.54·13-s + (0.654 − 1.49i)14-s − 0.186·15-s + (−0.0661 − 0.114i)16-s + (0.262 − 0.454i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 7 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.889 - 0.457i)\, \overline{\Lambda}(12-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 7 ^{s/2} \, \Gamma_{\C}(s+11/2) \, L(s)\cr =\mathstrut & (-0.889 - 0.457i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(7\)
Sign: $-0.889 - 0.457i$
Analytic conductor: \(5.37840\)
Root analytic conductor: \(2.31913\)
Motivic weight: \(11\)
Rational: no
Arithmetic: yes
Character: $\chi_{7} (4, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 7,\ (\ :11/2),\ -0.889 - 0.457i)\)

Particular Values

\(L(6)\) \(\approx\) \(0.500851 + 2.06749i\)
\(L(\frac12)\) \(\approx\) \(0.500851 + 2.06749i\)
\(L(\frac{13}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 + (2.63e4 + 3.57e4i)T \)
good2 \( 1 + (-37.0 - 64.1i)T + (-1.02e3 + 1.77e3i)T^{2} \)
3 \( 1 + (82.0 - 142. i)T + (-8.85e4 - 1.53e5i)T^{2} \)
5 \( 1 + (-1.67e3 - 2.89e3i)T + (-2.44e7 + 4.22e7i)T^{2} \)
11 \( 1 + (1.78e5 - 3.09e5i)T + (-1.42e11 - 2.47e11i)T^{2} \)
13 \( 1 - 2.06e6T + 1.79e12T^{2} \)
17 \( 1 + (-1.53e6 + 2.65e6i)T + (-1.71e13 - 2.96e13i)T^{2} \)
19 \( 1 + (-6.51e6 - 1.12e7i)T + (-5.82e13 + 1.00e14i)T^{2} \)
23 \( 1 + (2.24e7 + 3.88e7i)T + (-4.76e14 + 8.25e14i)T^{2} \)
29 \( 1 + 1.16e8T + 1.22e16T^{2} \)
31 \( 1 + (-1.09e8 + 1.90e8i)T + (-1.27e16 - 2.20e16i)T^{2} \)
37 \( 1 + (3.99e7 + 6.91e7i)T + (-8.89e16 + 1.54e17i)T^{2} \)
41 \( 1 - 9.01e8T + 5.50e17T^{2} \)
43 \( 1 - 5.79e8T + 9.29e17T^{2} \)
47 \( 1 + (5.34e8 + 9.24e8i)T + (-1.23e18 + 2.14e18i)T^{2} \)
53 \( 1 + (-2.00e8 + 3.46e8i)T + (-4.63e18 - 8.02e18i)T^{2} \)
59 \( 1 + (2.26e9 - 3.92e9i)T + (-1.50e19 - 2.61e19i)T^{2} \)
61 \( 1 + (8.45e8 + 1.46e9i)T + (-2.17e19 + 3.76e19i)T^{2} \)
67 \( 1 + (4.36e9 - 7.56e9i)T + (-6.10e19 - 1.05e20i)T^{2} \)
71 \( 1 + 5.61e8T + 2.31e20T^{2} \)
73 \( 1 + (-4.25e9 + 7.37e9i)T + (-1.56e20 - 2.71e20i)T^{2} \)
79 \( 1 + (1.02e10 + 1.77e10i)T + (-3.73e20 + 6.47e20i)T^{2} \)
83 \( 1 + 2.59e8T + 1.28e21T^{2} \)
89 \( 1 + (4.21e10 + 7.30e10i)T + (-1.38e21 + 2.40e21i)T^{2} \)
97 \( 1 - 1.58e11T + 7.15e21T^{2} \)
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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

−20.71946440070644294290190530287, −18.39555654793459034696506875421, −16.60004907448733836903922165169, −15.88523790838512515336359658605, −14.20585613116844155781728149585, −13.11203888770836229107953579724, −10.36459631439694226662756013118, −7.64889778871291995205207992916, −6.07385987796194867023527096240, −4.14136085106287228727539889662, 1.23003783344996850440734332663, 3.39677982741824393096801617179, 5.75557779012564176219485422284, 9.331715543424835972650611940209, 11.25515801773805258860699656451, 12.60704203579618902578826769447, 13.53553524445426914417358488010, 15.72295549497333684364096092234, 18.15343186320143329047475341067, 19.30188241041996120748918079740

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