Properties

Label 2-805-1.1-c1-0-31
Degree $2$
Conductor $805$
Sign $1$
Analytic cond. $6.42795$
Root an. cond. $2.53534$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2.15·2-s + 2.43·3-s + 2.66·4-s − 5-s + 5.25·6-s + 7-s + 1.43·8-s + 2.93·9-s − 2.15·10-s + 0.840·11-s + 6.48·12-s − 4.09·13-s + 2.15·14-s − 2.43·15-s − 2.22·16-s + 5.15·17-s + 6.32·18-s + 4.38·19-s − 2.66·20-s + 2.43·21-s + 1.81·22-s − 23-s + 3.49·24-s + 25-s − 8.85·26-s − 0.169·27-s + 2.66·28-s + ⋯
L(s)  = 1  + 1.52·2-s + 1.40·3-s + 1.33·4-s − 0.447·5-s + 2.14·6-s + 0.377·7-s + 0.507·8-s + 0.976·9-s − 0.682·10-s + 0.253·11-s + 1.87·12-s − 1.13·13-s + 0.577·14-s − 0.628·15-s − 0.557·16-s + 1.25·17-s + 1.49·18-s + 1.00·19-s − 0.595·20-s + 0.531·21-s + 0.386·22-s − 0.208·23-s + 0.713·24-s + 0.200·25-s − 1.73·26-s − 0.0325·27-s + 0.503·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 805 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 805 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(805\)    =    \(5 \cdot 7 \cdot 23\)
Sign: $1$
Analytic conductor: \(6.42795\)
Root analytic conductor: \(2.53534\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 805,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(4.950955155\)
\(L(\frac12)\) \(\approx\) \(4.950955155\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad5 \( 1 + T \)
7 \( 1 - T \)
23 \( 1 + T \)
good2 \( 1 - 2.15T + 2T^{2} \)
3 \( 1 - 2.43T + 3T^{2} \)
11 \( 1 - 0.840T + 11T^{2} \)
13 \( 1 + 4.09T + 13T^{2} \)
17 \( 1 - 5.15T + 17T^{2} \)
19 \( 1 - 4.38T + 19T^{2} \)
29 \( 1 - 0.458T + 29T^{2} \)
31 \( 1 + 0.389T + 31T^{2} \)
37 \( 1 + 10.8T + 37T^{2} \)
41 \( 1 + 5.24T + 41T^{2} \)
43 \( 1 + 1.90T + 43T^{2} \)
47 \( 1 + 8.58T + 47T^{2} \)
53 \( 1 + 3.11T + 53T^{2} \)
59 \( 1 - 4.21T + 59T^{2} \)
61 \( 1 - 6.00T + 61T^{2} \)
67 \( 1 - 2.09T + 67T^{2} \)
71 \( 1 + 12.9T + 71T^{2} \)
73 \( 1 - 13.1T + 73T^{2} \)
79 \( 1 - 11.4T + 79T^{2} \)
83 \( 1 + 4.95T + 83T^{2} \)
89 \( 1 - 6.84T + 89T^{2} \)
97 \( 1 + 8.02T + 97T^{2} \)
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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

−10.18953770101807387117887029613, −9.386604780806954630346050435449, −8.384739735806814099808356560657, −7.59825643977048854499292611485, −6.86963738927671192581859535038, −5.45856466313702712422964586402, −4.75921271000124824013731056019, −3.58304833956471437153273121064, −3.16145045073289534222230379482, −1.97028288200708079191778777702, 1.97028288200708079191778777702, 3.16145045073289534222230379482, 3.58304833956471437153273121064, 4.75921271000124824013731056019, 5.45856466313702712422964586402, 6.86963738927671192581859535038, 7.59825643977048854499292611485, 8.384739735806814099808356560657, 9.386604780806954630346050435449, 10.18953770101807387117887029613

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