Properties

Degree 1
Conductor 31
Sign $-0.943 - 0.330i$
Motivic weight 0
Primitive yes
Self-dual no
Analytic rank 0

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Normalization:  

Dirichlet series

L(χ,s)  = 1  + (0.309 − 0.951i)2-s + (−0.309 − 0.951i)3-s + (−0.809 − 0.587i)4-s + 5-s − 6-s + (−0.809 − 0.587i)7-s + (−0.809 + 0.587i)8-s + (−0.809 + 0.587i)9-s + (0.309 − 0.951i)10-s + (0.809 + 0.587i)11-s + (−0.309 + 0.951i)12-s + (−0.309 − 0.951i)13-s + (−0.809 + 0.587i)14-s + (−0.309 − 0.951i)15-s + (0.309 + 0.951i)16-s + (0.809 − 0.587i)17-s + ⋯
L(s,χ)  = 1  + (0.309 − 0.951i)2-s + (−0.309 − 0.951i)3-s + (−0.809 − 0.587i)4-s + 5-s − 6-s + (−0.809 − 0.587i)7-s + (−0.809 + 0.587i)8-s + (−0.809 + 0.587i)9-s + (0.309 − 0.951i)10-s + (0.809 + 0.587i)11-s + (−0.309 + 0.951i)12-s + (−0.309 − 0.951i)13-s + (−0.809 + 0.587i)14-s + (−0.309 − 0.951i)15-s + (0.309 + 0.951i)16-s + (0.809 − 0.587i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(\chi,s)=\mathstrut & 31 ^{s/2} \, \Gamma_{\R}(s+1) \, L(\chi,s)\cr =\mathstrut & (-0.943 - 0.330i)\, \Lambda(\overline{\chi},1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s,\chi)=\mathstrut & 31 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s,\chi)\cr =\mathstrut & (-0.943 - 0.330i)\, \Lambda(1-s,\overline{\chi}) \end{aligned}\]

Invariants

\( d \)  =  \(1\)
\( N \)  =  \(31\)
\( \varepsilon \)  =  $-0.943 - 0.330i$
motivic weight  =  \(0\)
character  :  $\chi_{31} (15, \cdot )$
Sato-Tate  :  $\mu(10)$
primitive  :  yes
self-dual  :  no
analytic rank  =  0
Selberg data  =  $(1,\ 31,\ (1:\ ),\ -0.943 - 0.330i)$
$L(\chi,\frac{1}{2})$  $\approx$  $0.2306052147 - 1.355289584i$
$L(\frac12,\chi)$  $\approx$  $0.2306052147 - 1.355289584i$
$L(\chi,1)$  $\approx$  0.6840578398 - 0.8975311770i
$L(1,\chi)$  $\approx$  0.6840578398 - 0.8975311770i

Euler product

\[\begin{aligned}L(\chi,s) = \prod_p (1- \chi(p) p^{-s})^{-1}\end{aligned}\]
\[\begin{aligned}L(s,\chi) = \prod_p (1- \chi(p) p^{-s})^{-1}\end{aligned}\]

Imaginary part of the first few zeros on the critical line

−37.066473861800698913391030712399, −35.49714373668704611137346663830, −34.33921375711091180796854132469, −33.29665436203929818022593258667, −32.4440937612587330538639950522, −31.53576512828425439738789013605, −29.53993736867000404763415161624, −28.232037283561745608367441575668, −26.81378634133369164224485359562, −25.771046079438126957881227459803, −24.75535993199169037760916238648, −23.00984372852617785178832465789, −21.91969548709758263463953940883, −21.2525173222356469469254671812, −18.85275866850004954839123929005, −17.09994647754203425381366651929, −16.47664793802865751004477724308, −14.97681799438143507069103273896, −13.8318583593302528089913574979, −12.09187218286082418930680669002, −9.82577459543882685780199649961, −8.93914514224797413478561429479, −6.40162584038573998066340663304, −5.46047509861528011814364919438, −3.57398868718491103235965839590, 1.01173093662613643426242176671, 2.83890296732804135213506855452, 5.31067982660713559736577140637, 6.87084990654634285017173513537, 9.303467786498165975817208841000, 10.62398288545876519417484094782, 12.347433074064011641032895259365, 13.237465302381965744828803824344, 14.3579034694328417477601062636, 17.05730152329900190669343375002, 18.05847051770838454567063996815, 19.43194999484478169548046725163, 20.4802632716753794249522081216, 22.281538155632123349105450736603, 22.92529958625581467838012734333, 24.54461399147380580276791697674, 25.810042929625683137730259843335, 27.737335621005811522296759924430, 29.01989183387248625639754731468, 29.70610997447390697643991575847, 30.55530566514374416496190176640, 32.24583830347167259813804629142, 33.20776651101042650124611929390, 35.06305480502410161681708577102, 36.3264916760952652019335036877

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