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Properties

Label 2-637-91.51-c1-0-15
Degree $2$
Conductor $637$
Sign $-0.326 - 0.945i$
Analytic cond. $5.08647$
Root an. cond. $2.25532$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (1.73 + i)2-s + (1 + 1.73i)3-s + (0.999 + 1.73i)4-s + (0.866 + 0.5i)5-s + 3.99i·6-s + (−0.499 + 0.866i)9-s + (0.999 + 1.73i)10-s + (−1.73 + i)11-s + (−2 + 3.46i)12-s + (−2 + 3i)13-s + 1.99i·15-s + (1.99 − 3.46i)16-s + (3 + 5.19i)17-s + (−1.73 + 0.999i)18-s + (−2.59 − 1.5i)19-s + 1.99i·20-s + ⋯
L(s)  = 1  + (1.22 + 0.707i)2-s + (0.577 + 0.999i)3-s + (0.499 + 0.866i)4-s + (0.387 + 0.223i)5-s + 1.63i·6-s + (−0.166 + 0.288i)9-s + (0.316 + 0.547i)10-s + (−0.522 + 0.301i)11-s + (−0.577 + 0.999i)12-s + (−0.554 + 0.832i)13-s + 0.516i·15-s + (0.499 − 0.866i)16-s + (0.727 + 1.26i)17-s + (−0.408 + 0.235i)18-s + (−0.596 − 0.344i)19-s + 0.447i·20-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 637 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.326 - 0.945i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 637 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.326 - 0.945i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(637\)    =    \(7^{2} \cdot 13\)
Sign: $-0.326 - 0.945i$
Analytic conductor: \(5.08647\)
Root analytic conductor: \(2.25532\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{637} (324, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 637,\ (\ :1/2),\ -0.326 - 0.945i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.98873 + 2.79055i\)
\(L(\frac12)\) \(\approx\) \(1.98873 + 2.79055i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 \)
13 \( 1 + (2 - 3i)T \)
good2 \( 1 + (-1.73 - i)T + (1 + 1.73i)T^{2} \)
3 \( 1 + (-1 - 1.73i)T + (-1.5 + 2.59i)T^{2} \)
5 \( 1 + (-0.866 - 0.5i)T + (2.5 + 4.33i)T^{2} \)
11 \( 1 + (1.73 - i)T + (5.5 - 9.52i)T^{2} \)
17 \( 1 + (-3 - 5.19i)T + (-8.5 + 14.7i)T^{2} \)
19 \( 1 + (2.59 + 1.5i)T + (9.5 + 16.4i)T^{2} \)
23 \( 1 + (-1.5 + 2.59i)T + (-11.5 - 19.9i)T^{2} \)
29 \( 1 - 3T + 29T^{2} \)
31 \( 1 + (-2.59 + 1.5i)T + (15.5 - 26.8i)T^{2} \)
37 \( 1 + (5.19 + 3i)T + (18.5 + 32.0i)T^{2} \)
41 \( 1 + 10iT - 41T^{2} \)
43 \( 1 - T + 43T^{2} \)
47 \( 1 + (9.52 + 5.5i)T + (23.5 + 40.7i)T^{2} \)
53 \( 1 + (-4.5 - 7.79i)T + (-26.5 + 45.8i)T^{2} \)
59 \( 1 + (6.92 - 4i)T + (29.5 - 51.0i)T^{2} \)
61 \( 1 + (-4 + 6.92i)T + (-30.5 - 52.8i)T^{2} \)
67 \( 1 + (-10.3 + 6i)T + (33.5 - 58.0i)T^{2} \)
71 \( 1 - 14iT - 71T^{2} \)
73 \( 1 + (7.79 - 4.5i)T + (36.5 - 63.2i)T^{2} \)
79 \( 1 + (-4.5 + 7.79i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 + 11iT - 83T^{2} \)
89 \( 1 + (-4.33 - 2.5i)T + (44.5 + 77.0i)T^{2} \)
97 \( 1 - 9iT - 97T^{2} \)
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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

−10.49590619350742166632671804842, −10.11490149793827931641108462400, −9.140627684098691526841293972567, −8.164308329161983490767090484428, −6.99107251461381933806022610827, −6.23564539502329677663121703039, −5.17091526955420967882773165144, −4.36337050088606298719483544142, −3.64037635922941505596439581148, −2.40802780610440579685641170607, 1.42964512770912454141565688065, 2.63501726559528313866156655319, 3.25214137570193049920871467835, 4.84745256009241011484472340332, 5.43472064848008836252219137932, 6.61268433625115392644138889161, 7.75456078792016133308934857037, 8.301857290419964722551323880947, 9.636665557118931478532672469412, 10.49427493280496618380628039855

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