Properties

Label 2-7e2-49.15-c3-0-1
Degree $2$
Conductor $49$
Sign $-0.817 + 0.576i$
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  + (−0.764 + 3.34i)2-s + (−5.99 + 7.51i)3-s + (−3.41 − 1.64i)4-s + (0.968 − 1.21i)5-s + (−20.5 − 25.8i)6-s + (18.5 + 0.839i)7-s + (−9.01 + 11.3i)8-s + (−14.5 − 63.8i)9-s + (3.32 + 4.17i)10-s + (3.27 − 14.3i)11-s + (32.8 − 15.8i)12-s + (−15.5 + 68.1i)13-s + (−16.9 + 61.2i)14-s + (3.32 + 14.5i)15-s + (−49.8 − 62.5i)16-s + (−63.7 + 30.6i)17-s + ⋯
L(s)  = 1  + (−0.270 + 1.18i)2-s + (−1.15 + 1.44i)3-s + (−0.426 − 0.205i)4-s + (0.0866 − 0.108i)5-s + (−1.40 − 1.75i)6-s + (0.998 + 0.0453i)7-s + (−0.398 + 0.499i)8-s + (−0.539 − 2.36i)9-s + (0.105 + 0.131i)10-s + (0.0896 − 0.392i)11-s + (0.790 − 0.380i)12-s + (−0.331 + 1.45i)13-s + (−0.323 + 1.17i)14-s + (0.0572 + 0.250i)15-s + (−0.778 − 0.976i)16-s + (−0.909 + 0.437i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.817 + 0.576i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 49 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.817 + 0.576i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(49\)    =    \(7^{2}\)
Sign: $-0.817 + 0.576i$
Analytic conductor: \(2.89109\)
Root analytic conductor: \(1.70032\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{49} (15, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 49,\ (\ :3/2),\ -0.817 + 0.576i)\)

Particular Values

\(L(2)\) \(\approx\) \(0.234675 - 0.739575i\)
\(L(\frac12)\) \(\approx\) \(0.234675 - 0.739575i\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 + (-18.5 - 0.839i)T \)
good2 \( 1 + (0.764 - 3.34i)T + (-7.20 - 3.47i)T^{2} \)
3 \( 1 + (5.99 - 7.51i)T + (-6.00 - 26.3i)T^{2} \)
5 \( 1 + (-0.968 + 1.21i)T + (-27.8 - 121. i)T^{2} \)
11 \( 1 + (-3.27 + 14.3i)T + (-1.19e3 - 577. i)T^{2} \)
13 \( 1 + (15.5 - 68.1i)T + (-1.97e3 - 953. i)T^{2} \)
17 \( 1 + (63.7 - 30.6i)T + (3.06e3 - 3.84e3i)T^{2} \)
19 \( 1 - 87.5T + 6.85e3T^{2} \)
23 \( 1 + (67.8 + 32.6i)T + (7.58e3 + 9.51e3i)T^{2} \)
29 \( 1 + (-85.8 + 41.3i)T + (1.52e4 - 1.90e4i)T^{2} \)
31 \( 1 - 24.8T + 2.97e4T^{2} \)
37 \( 1 + (-118. + 57.0i)T + (3.15e4 - 3.96e4i)T^{2} \)
41 \( 1 + (269. - 338. i)T + (-1.53e4 - 6.71e4i)T^{2} \)
43 \( 1 + (5.18 + 6.49i)T + (-1.76e4 + 7.75e4i)T^{2} \)
47 \( 1 + (-0.791 + 3.46i)T + (-9.35e4 - 4.50e4i)T^{2} \)
53 \( 1 + (74.5 + 35.9i)T + (9.28e4 + 1.16e5i)T^{2} \)
59 \( 1 + (-479. - 601. i)T + (-4.57e4 + 2.00e5i)T^{2} \)
61 \( 1 + (-240. + 115. i)T + (1.41e5 - 1.77e5i)T^{2} \)
67 \( 1 - 730.T + 3.00e5T^{2} \)
71 \( 1 + (-978. - 471. i)T + (2.23e5 + 2.79e5i)T^{2} \)
73 \( 1 + (2.23 + 9.78i)T + (-3.50e5 + 1.68e5i)T^{2} \)
79 \( 1 + 782.T + 4.93e5T^{2} \)
83 \( 1 + (136. + 598. i)T + (-5.15e5 + 2.48e5i)T^{2} \)
89 \( 1 + (95.1 + 416. i)T + (-6.35e5 + 3.05e5i)T^{2} \)
97 \( 1 + 955.T + 9.12e5T^{2} \)
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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

−15.98370915375257280114116919693, −15.07674527205013445443496728357, −14.17745629732290176170842937622, −11.71784435722861163244209235445, −11.26074420129230703768522921239, −9.666958046652090176847319474013, −8.572229156088622029099376905271, −6.74184069643093618838520207871, −5.51001615027854399327145920046, −4.44731260483846501247471080861, 0.75789246153369928942320112311, 2.24191985318069339688629656481, 5.25215548173485316380051360735, 6.80011833093220086177639140933, 8.078379514210348471395817293313, 10.20543625656022715115202519868, 11.19088787093793901811596844369, 11.95409573494032162126910809095, 12.74362977384174981342921936412, 13.90123133114954972062210644013

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