Properties

Label 2-3e4-81.25-c1-0-4
Degree $2$
Conductor $81$
Sign $0.998 - 0.0478i$
Analytic cond. $0.646788$
Root an. cond. $0.804231$
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  + (1.38 − 0.693i)2-s + (−0.395 + 1.68i)3-s + (0.230 − 0.309i)4-s + (0.145 − 0.487i)5-s + (0.622 + 2.60i)6-s + (1.57 − 3.66i)7-s + (−0.432 + 2.45i)8-s + (−2.68 − 1.33i)9-s + (−0.136 − 0.774i)10-s + (−3.72 − 0.882i)11-s + (0.430 + 0.511i)12-s + (−2.60 + 1.71i)13-s + (−0.358 − 6.15i)14-s + (0.764 + 0.438i)15-s + (1.32 + 4.42i)16-s + (−1.41 − 0.513i)17-s + ⋯
L(s)  = 1  + (0.976 − 0.490i)2-s + (−0.228 + 0.973i)3-s + (0.115 − 0.154i)4-s + (0.0652 − 0.218i)5-s + (0.254 + 1.06i)6-s + (0.597 − 1.38i)7-s + (−0.153 + 0.868i)8-s + (−0.895 − 0.444i)9-s + (−0.0431 − 0.244i)10-s + (−1.12 − 0.266i)11-s + (0.124 + 0.147i)12-s + (−0.721 + 0.474i)13-s + (−0.0957 − 1.64i)14-s + (0.197 + 0.113i)15-s + (0.331 + 1.10i)16-s + (−0.342 − 0.124i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.998 - 0.0478i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 81 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.998 - 0.0478i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(81\)    =    \(3^{4}\)
Sign: $0.998 - 0.0478i$
Analytic conductor: \(0.646788\)
Root analytic conductor: \(0.804231\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{81} (25, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 81,\ (\ :1/2),\ 0.998 - 0.0478i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.31597 + 0.0315277i\)
\(L(\frac12)\) \(\approx\) \(1.31597 + 0.0315277i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 + (0.395 - 1.68i)T \)
good2 \( 1 + (-1.38 + 0.693i)T + (1.19 - 1.60i)T^{2} \)
5 \( 1 + (-0.145 + 0.487i)T + (-4.17 - 2.74i)T^{2} \)
7 \( 1 + (-1.57 + 3.66i)T + (-4.80 - 5.09i)T^{2} \)
11 \( 1 + (3.72 + 0.882i)T + (9.82 + 4.93i)T^{2} \)
13 \( 1 + (2.60 - 1.71i)T + (5.14 - 11.9i)T^{2} \)
17 \( 1 + (1.41 + 0.513i)T + (13.0 + 10.9i)T^{2} \)
19 \( 1 + (-6.30 + 2.29i)T + (14.5 - 12.2i)T^{2} \)
23 \( 1 + (0.469 + 1.08i)T + (-15.7 + 16.7i)T^{2} \)
29 \( 1 + (0.402 - 6.90i)T + (-28.8 - 3.36i)T^{2} \)
31 \( 1 + (-0.0460 - 0.00538i)T + (30.1 + 7.14i)T^{2} \)
37 \( 1 + (2.33 - 1.96i)T + (6.42 - 36.4i)T^{2} \)
41 \( 1 + (5.30 + 2.66i)T + (24.4 + 32.8i)T^{2} \)
43 \( 1 + (0.163 - 0.173i)T + (-2.50 - 42.9i)T^{2} \)
47 \( 1 + (-4.70 + 0.550i)T + (45.7 - 10.8i)T^{2} \)
53 \( 1 + (-6.81 - 11.7i)T + (-26.5 + 45.8i)T^{2} \)
59 \( 1 + (1.35 - 0.322i)T + (52.7 - 26.4i)T^{2} \)
61 \( 1 + (0.187 + 0.251i)T + (-17.4 + 58.4i)T^{2} \)
67 \( 1 + (0.319 + 5.48i)T + (-66.5 + 7.77i)T^{2} \)
71 \( 1 + (2.03 + 11.5i)T + (-66.7 + 24.2i)T^{2} \)
73 \( 1 + (-2.70 + 15.3i)T + (-68.5 - 24.9i)T^{2} \)
79 \( 1 + (12.5 - 6.28i)T + (47.1 - 63.3i)T^{2} \)
83 \( 1 + (-0.628 + 0.315i)T + (49.5 - 66.5i)T^{2} \)
89 \( 1 + (-2.00 + 11.3i)T + (-83.6 - 30.4i)T^{2} \)
97 \( 1 + (-3.73 - 12.4i)T + (-81.0 + 53.3i)T^{2} \)
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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

−14.08630145879796316305546029966, −13.53878359566477713683573981543, −12.17937174441706641612365555010, −11.09853943982177264286981252838, −10.41044867052756016596362980543, −8.916187584545239720920216026675, −7.42215377828390986814249495330, −5.22657713738130083533720189513, −4.59788691654708733956250374459, −3.19372032015702834254008307962, 2.60671830061848423751900771951, 5.15516878839356366364642078156, 5.73113946728296859430426074278, 7.17672821207726807860917762650, 8.310779146987945071580701264622, 9.978579595114956712994636291990, 11.64502597798988942804293010136, 12.43797696690580535315154881155, 13.29901290478580017334214120239, 14.33616536030967424568468652736

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