Properties

Label 1-127-127.126-r1-0-0
Degree $1$
Conductor $127$
Sign $1$
Analytic cond. $13.6480$
Root an. cond. $13.6480$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2-s − 3-s + 4-s − 5-s − 6-s − 7-s + 8-s + 9-s − 10-s + 11-s − 12-s + 13-s − 14-s + 15-s + 16-s + 17-s + 18-s + 19-s − 20-s + 21-s + 22-s − 23-s − 24-s + 25-s + 26-s − 27-s − 28-s + ⋯
L(s)  = 1  + 2-s − 3-s + 4-s − 5-s − 6-s − 7-s + 8-s + 9-s − 10-s + 11-s − 12-s + 13-s − 14-s + 15-s + 16-s + 17-s + 18-s + 19-s − 20-s + 21-s + 22-s − 23-s − 24-s + 25-s + 26-s − 27-s − 28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 127 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 127 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(1\)
Conductor: \(127\)
Sign: $1$
Analytic conductor: \(13.6480\)
Root analytic conductor: \(13.6480\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{127} (126, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((1,\ 127,\ (1:\ ),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(2.146130765\)
\(L(\frac12)\) \(\approx\) \(2.146130765\)
\(L(1)\) \(\approx\) \(1.393856345\)
\(L(1)\) \(\approx\) \(1.393856345\)

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad127 \( 1 \)
good2 \( 1 + T \)
3 \( 1 - T \)
5 \( 1 - T \)
7 \( 1 - T \)
11 \( 1 + T \)
13 \( 1 + T \)
17 \( 1 + T \)
19 \( 1 + T \)
23 \( 1 - T \)
29 \( 1 - T \)
31 \( 1 + T \)
37 \( 1 + T \)
41 \( 1 + T \)
43 \( 1 - T \)
47 \( 1 + T \)
53 \( 1 - T \)
59 \( 1 - T \)
61 \( 1 + T \)
67 \( 1 - T \)
71 \( 1 + T \)
73 \( 1 + T \)
79 \( 1 + T \)
83 \( 1 - T \)
89 \( 1 - T \)
97 \( 1 - T \)
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   \(L(s) = \displaystyle\prod_p \ (1 - \alpha_{p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−28.52067572488685652646389057870, −27.99766520435093351585090067655, −26.59824644021116548642773324817, −25.30124695561747839302704554022, −24.19398541952146627356626474547, −23.279148337480309795448459607619, −22.677405948881897126576468287268, −21.96833579705921697263025438098, −20.58362189655130578482929961606, −19.539199884866128204208285284977, −18.52993437974209509579716166030, −16.74877019286484271434125709973, −16.161385682348337101787818022973, −15.33615762307803917923153995071, −13.89394810720922335386545359492, −12.631398354222797416029961828042, −11.90503815434017299792619603099, −11.10151564764325224425028448620, −9.76282214075559466375546575576, −7.70462897529502961342813667591, −6.581437893004037305522758931557, −5.72897321866236488034284711816, −4.19462861152323220660614436108, −3.40793170681041696251990926794, −1.035608606664081358328231063178, 1.035608606664081358328231063178, 3.40793170681041696251990926794, 4.19462861152323220660614436108, 5.72897321866236488034284711816, 6.581437893004037305522758931557, 7.70462897529502961342813667591, 9.76282214075559466375546575576, 11.10151564764325224425028448620, 11.90503815434017299792619603099, 12.631398354222797416029961828042, 13.89394810720922335386545359492, 15.33615762307803917923153995071, 16.161385682348337101787818022973, 16.74877019286484271434125709973, 18.52993437974209509579716166030, 19.539199884866128204208285284977, 20.58362189655130578482929961606, 21.96833579705921697263025438098, 22.677405948881897126576468287268, 23.279148337480309795448459607619, 24.19398541952146627356626474547, 25.30124695561747839302704554022, 26.59824644021116548642773324817, 27.99766520435093351585090067655, 28.52067572488685652646389057870

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