Properties

Label 2-161-1.1-c1-0-5
Degree $2$
Conductor $161$
Sign $1$
Analytic cond. $1.28559$
Root an. cond. $1.13383$
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  + 2.11·2-s − 1.84·3-s + 2.49·4-s + 2.40·5-s − 3.90·6-s + 7-s + 1.04·8-s + 0.388·9-s + 5.10·10-s + 5.87·11-s − 4.58·12-s − 6.24·13-s + 2.11·14-s − 4.43·15-s − 2.77·16-s − 5.42·17-s + 0.823·18-s − 2.23·19-s + 6.00·20-s − 1.84·21-s + 12.4·22-s − 23-s − 1.92·24-s + 0.804·25-s − 13.2·26-s + 4.80·27-s + 2.49·28-s + ⋯
L(s)  = 1  + 1.49·2-s − 1.06·3-s + 1.24·4-s + 1.07·5-s − 1.59·6-s + 0.377·7-s + 0.368·8-s + 0.129·9-s + 1.61·10-s + 1.77·11-s − 1.32·12-s − 1.73·13-s + 0.566·14-s − 1.14·15-s − 0.693·16-s − 1.31·17-s + 0.193·18-s − 0.513·19-s + 1.34·20-s − 0.401·21-s + 2.65·22-s − 0.208·23-s − 0.391·24-s + 0.160·25-s − 2.59·26-s + 0.925·27-s + 0.470·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 161 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 161 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(161\)    =    \(7 \cdot 23\)
Sign: $1$
Analytic conductor: \(1.28559\)
Root analytic conductor: \(1.13383\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 161,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.937564687\)
\(L(\frac12)\) \(\approx\) \(1.937564687\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 - T \)
23 \( 1 + T \)
good2 \( 1 - 2.11T + 2T^{2} \)
3 \( 1 + 1.84T + 3T^{2} \)
5 \( 1 - 2.40T + 5T^{2} \)
11 \( 1 - 5.87T + 11T^{2} \)
13 \( 1 + 6.24T + 13T^{2} \)
17 \( 1 + 5.42T + 17T^{2} \)
19 \( 1 + 2.23T + 19T^{2} \)
29 \( 1 - 0.642T + 29T^{2} \)
31 \( 1 - 7.84T + 31T^{2} \)
37 \( 1 - 0.557T + 37T^{2} \)
41 \( 1 - 2.56T + 41T^{2} \)
43 \( 1 + 8.81T + 43T^{2} \)
47 \( 1 - 4.26T + 47T^{2} \)
53 \( 1 - 3.01T + 53T^{2} \)
59 \( 1 - 4.17T + 59T^{2} \)
61 \( 1 + 0.148T + 61T^{2} \)
67 \( 1 - 13.3T + 67T^{2} \)
71 \( 1 + 7.93T + 71T^{2} \)
73 \( 1 - 4.28T + 73T^{2} \)
79 \( 1 + 0.861T + 79T^{2} \)
83 \( 1 + 4.81T + 83T^{2} \)
89 \( 1 - 6.32T + 89T^{2} \)
97 \( 1 - 10.4T + 97T^{2} \)
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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

−12.83817852335065163780750766845, −11.90456185847824662678697934380, −11.47625900562137573502366110359, −10.11844516787114290938383513426, −8.974183692378987214755718201902, −6.75646667751723041342704203637, −6.24688083086619781452494916208, −5.14530960437138326241383388487, −4.33270854012757008946164679016, −2.29996003692481769146752978162, 2.29996003692481769146752978162, 4.33270854012757008946164679016, 5.14530960437138326241383388487, 6.24688083086619781452494916208, 6.75646667751723041342704203637, 8.974183692378987214755718201902, 10.11844516787114290938383513426, 11.47625900562137573502366110359, 11.90456185847824662678697934380, 12.83817852335065163780750766845

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