Properties

Label 1-155-155.154-r1-0-0
Degree $1$
Conductor $155$
Sign $1$
Analytic cond. $16.6570$
Root an. cond. $16.6570$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

Downloads

Learn more

Normalization:  

Dirichlet series

L(s)  = 1  − 2-s + 3-s + 4-s − 6-s − 7-s − 8-s + 9-s − 11-s + 12-s + 13-s + 14-s + 16-s + 17-s − 18-s + 19-s − 21-s + 22-s + 23-s − 24-s − 26-s + 27-s − 28-s − 29-s − 32-s − 33-s − 34-s + 36-s + ⋯
L(s)  = 1  − 2-s + 3-s + 4-s − 6-s − 7-s − 8-s + 9-s − 11-s + 12-s + 13-s + 14-s + 16-s + 17-s − 18-s + 19-s − 21-s + 22-s + 23-s − 24-s − 26-s + 27-s − 28-s − 29-s − 32-s − 33-s − 34-s + 36-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 155 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 155 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(1\)
Conductor: \(155\)    =    \(5 \cdot 31\)
Sign: $1$
Analytic conductor: \(16.6570\)
Root analytic conductor: \(16.6570\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{155} (154, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((1,\ 155,\ (1:\ ),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(1.584900920\)
\(L(\frac12)\) \(\approx\) \(1.584900920\)
\(L(1)\) \(\approx\) \(1.009355177\)
\(L(1)\) \(\approx\) \(1.009355177\)

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad5 \( 1 \)
31 \( 1 \)
good2 \( 1 - T \)
3 \( 1 + T \)
7 \( 1 - T \)
11 \( 1 - T \)
13 \( 1 + T \)
17 \( 1 + T \)
19 \( 1 + T \)
23 \( 1 + T \)
29 \( 1 - T \)
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 \( 1 - T \)
show more
show less
   \(L(s) = \displaystyle\prod_p \ (1 - \alpha_{p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−27.57602625148412345143509858336, −26.46170293366109851016633699806, −25.90914645302545186228197424435, −25.23030920258361367680561957091, −24.147388418017948037749063637402, −22.93936430633474560982256512179, −21.27494312645721887522837039517, −20.66181975367558572704749590762, −19.66075382732379847654921225961, −18.77127966492803594562341716376, −18.185411618648244014250077273635, −16.49122033838853308786260325688, −15.87842824708895914781748003328, −14.89589108099870722837478848279, −13.462936635701975357042288150909, −12.55917614029182329291419157508, −10.970948691897027992161162179051, −9.87823258258194833522833825732, −9.15847286051048666335766148179, −7.98888396247113992126741514328, −7.1568549001624265776650302336, −5.7540624275658825720526749644, −3.51167575581166513323502633495, −2.656709463029098820625784200044, −1.01013246125190857650108132905, 1.01013246125190857650108132905, 2.656709463029098820625784200044, 3.51167575581166513323502633495, 5.7540624275658825720526749644, 7.1568549001624265776650302336, 7.98888396247113992126741514328, 9.15847286051048666335766148179, 9.87823258258194833522833825732, 10.970948691897027992161162179051, 12.55917614029182329291419157508, 13.462936635701975357042288150909, 14.89589108099870722837478848279, 15.87842824708895914781748003328, 16.49122033838853308786260325688, 18.185411618648244014250077273635, 18.77127966492803594562341716376, 19.66075382732379847654921225961, 20.66181975367558572704749590762, 21.27494312645721887522837039517, 22.93936430633474560982256512179, 24.147388418017948037749063637402, 25.23030920258361367680561957091, 25.90914645302545186228197424435, 26.46170293366109851016633699806, 27.57602625148412345143509858336

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