Normalization:  

Dirichlet series

L(s)  = 1  − 2·3-s + 2·5-s + 4·7-s + 9-s + 2·11-s + 2·13-s − 4·15-s − 2·17-s − 2·19-s − 8·21-s − 4·23-s − 25-s + 4·27-s − 6·29-s − 4·33-s + 8·35-s + 10·37-s − 4·39-s − 6·41-s − 6·43-s + 2·45-s + 8·47-s + 9·49-s + 4·51-s − 6·53-s + 4·55-s + 4·57-s + ⋯
L(s)  = 1  − 1.15·3-s + 0.894·5-s + 1.51·7-s + 1/3·9-s + 0.603·11-s + 0.554·13-s − 1.03·15-s − 0.485·17-s − 0.458·19-s − 1.74·21-s − 0.834·23-s − 1/5·25-s + 0.769·27-s − 1.11·29-s − 0.696·33-s + 1.35·35-s + 1.64·37-s − 0.640·39-s − 0.937·41-s − 0.914·43-s + 0.298·45-s + 1.16·47-s + 9/7·49-s + 0.560·51-s − 0.824·53-s + 0.539·55-s + 0.529·57-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 128 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 128 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(128\)    =    \(2^{7}\)
Sign: $1$
Analytic conductor: \(1.02208\)
Root analytic conductor: \(1.01098\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 128,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.9713362299\)
\(L(\frac12)\) \(\approx\) \(0.9713362299\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$Isogeny Class over $\mathbf{F}_p$
bad2 \( 1 \)
good3 \( 1 + 2 T + p T^{2} \) 1.3.c
5 \( 1 - 2 T + p T^{2} \) 1.5.ac
7 \( 1 - 4 T + p T^{2} \) 1.7.ae
11 \( 1 - 2 T + p T^{2} \) 1.11.ac
13 \( 1 - 2 T + p T^{2} \) 1.13.ac
17 \( 1 + 2 T + p T^{2} \) 1.17.c
19 \( 1 + 2 T + p T^{2} \) 1.19.c
23 \( 1 + 4 T + p T^{2} \) 1.23.e
29 \( 1 + 6 T + p T^{2} \) 1.29.g
31 \( 1 + p T^{2} \) 1.31.a
37 \( 1 - 10 T + p T^{2} \) 1.37.ak
41 \( 1 + 6 T + p T^{2} \) 1.41.g
43 \( 1 + 6 T + p T^{2} \) 1.43.g
47 \( 1 - 8 T + p T^{2} \) 1.47.ai
53 \( 1 + 6 T + p T^{2} \) 1.53.g
59 \( 1 + 14 T + p T^{2} \) 1.59.o
61 \( 1 - 2 T + p T^{2} \) 1.61.ac
67 \( 1 + 10 T + p T^{2} \) 1.67.k
71 \( 1 + 12 T + p T^{2} \) 1.71.m
73 \( 1 - 14 T + p T^{2} \) 1.73.ao
79 \( 1 - 8 T + p T^{2} \) 1.79.ai
83 \( 1 - 6 T + p T^{2} \) 1.83.ag
89 \( 1 + 2 T + p T^{2} \) 1.89.c
97 \( 1 + 2 T + p T^{2} \) 1.97.c
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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

−13.38742730478456157071741394596, −12.03375355269583309070551087085, −11.28853583105345723449818824184, −10.57265847830629711938727340297, −9.215939702261382322141825805489, −7.984207807149970007419508597610, −6.39871498618546548325782647590, −5.59100833138318705450052051530, −4.43324404972048918127214240916, −1.73703685485230483844290438322, 1.73703685485230483844290438322, 4.43324404972048918127214240916, 5.59100833138318705450052051530, 6.39871498618546548325782647590, 7.984207807149970007419508597610, 9.215939702261382322141825805489, 10.57265847830629711938727340297, 11.28853583105345723449818824184, 12.03375355269583309070551087085, 13.38742730478456157071741394596

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