Properties

Label 2-31e2-1.1-c1-0-21
Degree $2$
Conductor $961$
Sign $1$
Analytic cond. $7.67362$
Root an. cond. $2.77013$
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  + 2.49·2-s − 2.47·3-s + 4.23·4-s − 1.14·5-s − 6.17·6-s + 0.265·7-s + 5.56·8-s + 3.11·9-s − 2.86·10-s − 0.291·11-s − 10.4·12-s + 4.52·13-s + 0.661·14-s + 2.84·15-s + 5.44·16-s + 5.49·17-s + 7.77·18-s + 6.95·19-s − 4.86·20-s − 0.655·21-s − 0.727·22-s + 2.96·23-s − 13.7·24-s − 3.67·25-s + 11.2·26-s − 0.286·27-s + 1.12·28-s + ⋯
L(s)  = 1  + 1.76·2-s − 1.42·3-s + 2.11·4-s − 0.513·5-s − 2.52·6-s + 0.100·7-s + 1.96·8-s + 1.03·9-s − 0.907·10-s − 0.0879·11-s − 3.02·12-s + 1.25·13-s + 0.176·14-s + 0.733·15-s + 1.36·16-s + 1.33·17-s + 1.83·18-s + 1.59·19-s − 1.08·20-s − 0.143·21-s − 0.155·22-s + 0.618·23-s − 2.81·24-s − 0.735·25-s + 2.21·26-s − 0.0552·27-s + 0.211·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 961 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 961 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(961\)    =    \(31^{2}\)
Sign: $1$
Analytic conductor: \(7.67362\)
Root analytic conductor: \(2.77013\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 961,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.881440565\)
\(L(\frac12)\) \(\approx\) \(2.881440565\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad31 \( 1 \)
good2 \( 1 - 2.49T + 2T^{2} \)
3 \( 1 + 2.47T + 3T^{2} \)
5 \( 1 + 1.14T + 5T^{2} \)
7 \( 1 - 0.265T + 7T^{2} \)
11 \( 1 + 0.291T + 11T^{2} \)
13 \( 1 - 4.52T + 13T^{2} \)
17 \( 1 - 5.49T + 17T^{2} \)
19 \( 1 - 6.95T + 19T^{2} \)
23 \( 1 - 2.96T + 23T^{2} \)
29 \( 1 + 3.32T + 29T^{2} \)
37 \( 1 + 4.07T + 37T^{2} \)
41 \( 1 - 7.49T + 41T^{2} \)
43 \( 1 - 8.05T + 43T^{2} \)
47 \( 1 - 5.51T + 47T^{2} \)
53 \( 1 + 4.75T + 53T^{2} \)
59 \( 1 + 2.35T + 59T^{2} \)
61 \( 1 + 10.0T + 61T^{2} \)
67 \( 1 + 3.58T + 67T^{2} \)
71 \( 1 - 10.8T + 71T^{2} \)
73 \( 1 + 2.27T + 73T^{2} \)
79 \( 1 + 3.79T + 79T^{2} \)
83 \( 1 - 2.79T + 83T^{2} \)
89 \( 1 + 3.20T + 89T^{2} \)
97 \( 1 - 2.01T + 97T^{2} \)
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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

−10.71266341049430674537478092850, −9.428833947251081132681148322140, −7.83244653316419576330617568411, −7.14490477213935664124002624052, −6.04396100125625085608745799301, −5.67179948428029802495443929114, −4.91735484067636694032458029244, −3.91267720446921018587512311540, −3.13013962216912147376389114347, −1.22757920293218799713496602599, 1.22757920293218799713496602599, 3.13013962216912147376389114347, 3.91267720446921018587512311540, 4.91735484067636694032458029244, 5.67179948428029802495443929114, 6.04396100125625085608745799301, 7.14490477213935664124002624052, 7.83244653316419576330617568411, 9.428833947251081132681148322140, 10.71266341049430674537478092850

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