Properties

Label 2-2e7-4.3-c2-0-7
Degree $2$
Conductor $128$
Sign $-1$
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  − 4.82i·3-s − 7.65·5-s + 1.65i·7-s − 14.3·9-s + 1.51i·11-s + 0.343·13-s + 36.9i·15-s − 13.3·17-s − 20.8i·19-s + 7.99·21-s − 33.6i·23-s + 33.6·25-s + 25.6i·27-s − 39.6·29-s − 45.2i·31-s + ⋯
L(s)  = 1  − 1.60i·3-s − 1.53·5-s + 0.236i·7-s − 1.59·9-s + 0.137i·11-s + 0.0263·13-s + 2.46i·15-s − 0.783·17-s − 1.09i·19-s + 0.380·21-s − 1.46i·23-s + 1.34·25-s + 0.950i·27-s − 1.36·29-s − 1.45i·31-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(128\)    =    \(2^{7}\)
Sign: $-1$
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: \((2,\ 128,\ (\ :1),\ -1)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.627148i\)
\(L(\frac12)\) \(\approx\) \(0.627148i\)
\(L(2)\) 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 \( 1 + 4.82iT - 9T^{2} \)
5 \( 1 + 7.65T + 25T^{2} \)
7 \( 1 - 1.65iT - 49T^{2} \)
11 \( 1 - 1.51iT - 121T^{2} \)
13 \( 1 - 0.343T + 169T^{2} \)
17 \( 1 + 13.3T + 289T^{2} \)
19 \( 1 + 20.8iT - 361T^{2} \)
23 \( 1 + 33.6iT - 529T^{2} \)
29 \( 1 + 39.6T + 841T^{2} \)
31 \( 1 + 45.2iT - 961T^{2} \)
37 \( 1 - 29.5T + 1.36e3T^{2} \)
41 \( 1 - 24.6T + 1.68e3T^{2} \)
43 \( 1 - 50.0iT - 1.84e3T^{2} \)
47 \( 1 - 35.3iT - 2.20e3T^{2} \)
53 \( 1 - 16.3T + 2.80e3T^{2} \)
59 \( 1 + 53.1iT - 3.48e3T^{2} \)
61 \( 1 + 34.4T + 3.72e3T^{2} \)
67 \( 1 - 62.4iT - 4.48e3T^{2} \)
71 \( 1 - 40.2iT - 5.04e3T^{2} \)
73 \( 1 - 55.9T + 5.32e3T^{2} \)
79 \( 1 + 137. iT - 6.24e3T^{2} \)
83 \( 1 + 114. iT - 6.88e3T^{2} \)
89 \( 1 + 2.56T + 7.92e3T^{2} \)
97 \( 1 + 138.T + 9.40e3T^{2} \)
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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

−12.67667084642843938493080132426, −11.65048199361742865607528178643, −11.10660481480167489185413872463, −9.008809517576601987174247640977, −7.968288357792941920740897658606, −7.29518255921657874472388963989, −6.25578985257200962034051496173, −4.36091838568098770719405034547, −2.52485474928293717583848819731, −0.42420625848744924549397251279, 3.53371627007778845925567966444, 4.13114686178600122343947459149, 5.42796951014303270055757795129, 7.33208117860013835690844846885, 8.465614376984604626953553328724, 9.482415242292395898999986522455, 10.66906851830872721351935889076, 11.29449254887934501085698500841, 12.28685481505506509207735719605, 13.84837826467353181488010911951

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