Properties

Label 2-2e7-4.3-c2-0-1
Degree $2$
Conductor $128$
Sign $-i$
Analytic cond. $3.48774$
Root an. cond. $1.86755$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 0.828i·3-s − 3.65·5-s + 9.65i·7-s + 8.31·9-s + 18.4i·11-s − 11.6·13-s − 3.02i·15-s + 9.31·17-s − 15.1i·19-s − 7.99·21-s + 22.3i·23-s − 11.6·25-s + 14.3i·27-s + 28.3·29-s − 45.2i·31-s + ⋯
L(s)  = 1  + 0.276i·3-s − 0.731·5-s + 1.37i·7-s + 0.923·9-s + 1.68i·11-s − 0.896·13-s − 0.201i·15-s + 0.547·17-s − 0.798i·19-s − 0.380·21-s + 0.971i·23-s − 0.465·25-s + 0.531i·27-s + 0.977·29-s − 1.45i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 128 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -i\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 128 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & -i\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(128\)    =    \(2^{7}\)
Sign: $-i$
Analytic conductor: \(3.48774\)
Root analytic conductor: \(1.86755\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{128} (127, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 128,\ (\ :1),\ -i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.819927 + 0.819927i\)
\(L(\frac12)\) \(\approx\) \(0.819927 + 0.819927i\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 - 0.828iT - 9T^{2} \)
5 \( 1 + 3.65T + 25T^{2} \)
7 \( 1 - 9.65iT - 49T^{2} \)
11 \( 1 - 18.4iT - 121T^{2} \)
13 \( 1 + 11.6T + 169T^{2} \)
17 \( 1 - 9.31T + 289T^{2} \)
19 \( 1 + 15.1iT - 361T^{2} \)
23 \( 1 - 22.3iT - 529T^{2} \)
29 \( 1 - 28.3T + 841T^{2} \)
31 \( 1 + 45.2iT - 961T^{2} \)
37 \( 1 - 49.5T + 1.36e3T^{2} \)
41 \( 1 + 20.6T + 1.68e3T^{2} \)
43 \( 1 + 46.0iT - 1.84e3T^{2} \)
47 \( 1 + 12.6iT - 2.20e3T^{2} \)
53 \( 1 + 27.6T + 2.80e3T^{2} \)
59 \( 1 - 9.11iT - 3.48e3T^{2} \)
61 \( 1 - 113.T + 3.72e3T^{2} \)
67 \( 1 - 45.5iT - 4.48e3T^{2} \)
71 \( 1 - 16.2iT - 5.04e3T^{2} \)
73 \( 1 + 11.9T + 5.32e3T^{2} \)
79 \( 1 - 70.0iT - 6.24e3T^{2} \)
83 \( 1 - 94.6iT - 6.88e3T^{2} \)
89 \( 1 - 110.T + 7.92e3T^{2} \)
97 \( 1 + 25.4T + 9.40e3T^{2} \)
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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

−13.07248214761170527710994204980, −12.21340043375954422548090115623, −11.62160579652216746664337767405, −9.960572664174744278269864086772, −9.411368563485731192469475419993, −7.904628345107630551411943441739, −6.99701013448217858902334694766, −5.27480011879201854044680317513, −4.20845557365760383641685889693, −2.31233399639340128453410015207, 0.846174030510180526995593938771, 3.42564652837675398985673233387, 4.57826025008553777757176962047, 6.40447539936554957921610267832, 7.51892916851241766223056277987, 8.255719499900388781735958368450, 9.956698144552444040160728504526, 10.73133405526317766593530517480, 11.86625964854225562436148975455, 12.85810608843695616041409454678

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