Properties

Label 1-1021-1021.1020-r0-0-0
Degree $1$
Conductor $1021$
Sign $1$
Analytic cond. $4.74150$
Root an. cond. $4.74150$
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

\[\begin{aligned}\Lambda(s)=\mathstrut & 1021 ^{s/2} \, \Gamma_{\R}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1021 ^{s/2} \, \Gamma_{\R}(s) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(1\)
Conductor: \(1021\)
Sign: $1$
Analytic conductor: \(4.74150\)
Root analytic conductor: \(4.74150\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{1021} (1020, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((1,\ 1021,\ (0:\ ),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(1.644562554\)
\(L(\frac12)\) \(\approx\) \(1.644562554\)
\(L(1)\) \(\approx\) \(1.143357241\)
\(L(1)\) \(\approx\) \(1.143357241\)

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad1021 \( 1 \)
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

−21.51161716809761720919198554579, −20.6202425788228073802104164418, −19.868403334302282203165580961323, −19.1543280742807912537095131147, −18.82253278056184379049863833501, −17.64023264035819657245327183505, −16.94043206958278969818643899782, −16.37465671464016209447281321881, −15.2524855776021251755325999315, −14.593960043583335125344492668717, −13.8756219578811052814866982543, −12.65183123076654817211043650265, −12.33530159906627589934796425147, −10.75962374952728491851066526151, −10.04706267310392629908690510126, −9.363487902505602244811516270566, −9.024369826361748956733794116472, −7.94127394310442838243160300287, −6.85263497690485537415884709454, −6.530905537598793311850302047641, −5.24066251749701069313870964364, −3.71030434124688667051073756459, −2.84079592868128181937308228942, −2.084613318972894472809836956199, −1.06697467016381389907045820736, 1.06697467016381389907045820736, 2.084613318972894472809836956199, 2.84079592868128181937308228942, 3.71030434124688667051073756459, 5.24066251749701069313870964364, 6.530905537598793311850302047641, 6.85263497690485537415884709454, 7.94127394310442838243160300287, 9.024369826361748956733794116472, 9.363487902505602244811516270566, 10.04706267310392629908690510126, 10.75962374952728491851066526151, 12.33530159906627589934796425147, 12.65183123076654817211043650265, 13.8756219578811052814866982543, 14.593960043583335125344492668717, 15.2524855776021251755325999315, 16.37465671464016209447281321881, 16.94043206958278969818643899782, 17.64023264035819657245327183505, 18.82253278056184379049863833501, 19.1543280742807912537095131147, 19.868403334302282203165580961323, 20.6202425788228073802104164418, 21.51161716809761720919198554579

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