Properties

Label 1.6.L.2.1g
  
Name \(L_2(C_1)\)
Weight $1$
Degree $6$
Real dimension $6$
Components $2$
Contained in \(\mathrm{USp}(6)\)
Identity component \(\mathrm{U}(1)\times\mathrm{U}(1)_2\)
Component group \(C_2\)

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Invariants

Weight:$1$
Degree:$6$
$\mathbb{R}$-dimension:$6$
Components:$2$
Contained in:$\mathrm{USp}(6)$
Rational:yes

Identity component

Name:$\mathrm{U}(1)\times\mathrm{U}(1)_2$
$\mathbb{R}$-dimension:$6$
Description:$\left\{\begin{bmatrix}A&0&0\\0&\alpha I_2&0\\0&0&\bar\alpha I_2\end{bmatrix}: A\in\mathrm{U}(1)\subseteq\mathrm{SU}(2),\ \alpha\bar\alpha = 1,\ \alpha\in\mathbb{C}\right\}$ Symplectic form:$\begin{bmatrix}J_2&0&0\\0&0&I_2\\0&-I_2&0\end{bmatrix},\ J_2:=\begin{bmatrix}0&1\\-1&0\end{bmatrix}$
Hodge circle:$u\mapsto\mathrm{diag}(u,\bar u, u, u,\bar u, \bar u)$

Component group

Name:$C_2$
Order:$2$
Abelian:yes
Generators:$\begin{bmatrix}1 & 0 & 0 & 0 & 0 & 0 \\0 & 1 & 0 & 0 & 0 & 0 \\0 & 0 & -1 & 0 & 0 & 0 \\0 & 0 & 0 & -1 & 0 & 0 \\0 & 0 & 0 & 0 & -1 & 0 \\0 & 0 & 0 & 0 & 0 & -1 \\\end{bmatrix}, \begin{bmatrix}0 & 1 & 0 & 0 & 0 & 0 \\-1 & 0 & 0 & 0 & 0 &0 \\0 & 0 & 1 & 0 & 0 & 0 \\0 & 0 & 0 & 1 & 0 & 0 \\0 & 0 & 0 & 0 & 1 & 0 \\0 & 0 & 0 & 0 & 0 & 1 \\\end{bmatrix}$

Subgroups and supergroups

Maximal subgroups:$L_1(C_1)$
Minimal supergroups:$L_2(C_2)$, $L_2(C_3)$, $L_2(C_{2,1})$, $L_2(J(C_1))$

Moment sequences

$x$ $\mathrm{E}[x^{0}]$ $\mathrm{E}[x^{1}]$ $\mathrm{E}[x^{2}]$ $\mathrm{E}[x^{3}]$ $\mathrm{E}[x^{4}]$ $\mathrm{E}[x^{5}]$ $\mathrm{E}[x^{6}]$ $\mathrm{E}[x^{7}]$ $\mathrm{E}[x^{8}]$ $\mathrm{E}[x^{9}]$ $\mathrm{E}[x^{10}]$ $\mathrm{E}[x^{11}]$ $\mathrm{E}[x^{12}]$
$a_1$ $1$ $0$ $9$ $0$ $147$ $0$ $3090$ $0$ $76195$ $0$ $2085174$ $0$ $60984462$
$a_2$ $1$ $5$ $35$ $299$ $2995$ $33535$ $404045$ $5102725$ $66449555$ $883496495$ $11921952025$ $162671391745$ $2239005227869$
$a_3$ $1$ $0$ $50$ $0$ $7890$ $0$ $1973960$ $0$ $587317906$ $0$ $188318438280$ $0$ $62953175049864$

Moment simplex

$\left(\mathrm{E}\left[a_1^{e_1}a_2^{e_2}a_3^{e_3}\right]:\sum ie_i=2\right)\colon$ $5$ $9$
$\left(\mathrm{E}\left[a_1^{e_1}a_2^{e_2}a_3^{e_3}\right]:\sum ie_i=4\right)\colon$ $35$ $20$ $69$ $147$
$\left(\mathrm{E}\left[a_1^{e_1}a_2^{e_2}a_3^{e_3}\right]:\sum ie_i=6\right)\colon$ $50$ $299$ $174$ $635$ $372$ $1391$ $3090$
$\left(\mathrm{E}\left[a_1^{e_1}a_2^{e_2}a_3^{e_3}\right]:\sum ie_i=8\right)\colon$ $458$ $2995$ $1720$ $998$ $6627$ $3810$ $14865$ $8520$ $33570$ $76195$
$\left(\mathrm{E}\left[a_1^{e_1}a_2^{e_2}a_3^{e_3}\right]:\sum ie_i=10\right)\colon$ $4824$ $33535$ $2760$ $18976$ $10790$ $75915$ $42896$ $24340$ $172929$ $97500$ $395438$ $222460$ $906927$ $2085174$
$\left(\mathrm{E}\left[a_1^{e_1}a_2^{e_2}a_3^{e_3}\right]:\sum ie_i=12\right)\colon$ $7890$ $55660$ $404045$ $31378$ $225884$ $126664$ $926735$ $71240$ $517272$ $289492$ $2132441$ $1188232$ $663798$ $4918278$
$$ $2736202$ $11365473$ $6313608$ $26307750$ $60984462$

Moment matrix

$\mathrm{E}\left[\chi_i\chi_j\right] = \begin{bmatrix}1&0&4&0&4&0&7&10&0&4&0&15&0&0&24\\0&9&0&11&0&40&0&0&45&0&29&0&69&109&0\\4&0&26&0&30&0&68&80&0&46&0&148&0&0&280\\0&11&0&19&0&64&0&0&85&0&45&0&139&205&0\\4&0&30&0&44&0&90&104&0&70&0&212&0&0&392\\0&40&0&64&0&248&0&0&344&0&192&0&560&848&0\\7&0&68&0&90&0&239&274&0&204&0&545&0&0&1176\\10&0&80&0&104&0&274&338&0&252&0&644&0&0&1432\\0&45&0&85&0&344&0&0&565&0&267&0&899&1387&0\\4&0&46&0&70&0&204&252&0&226&0&492&0&0&1208\\0&29&0&45&0&192&0&0&267&0&164&0&448&679&0\\15&0&148&0&212&0&545&644&0&492&0&1315&0&0&2840\\0&69&0&139&0&560&0&0&899&0&448&0&1494&2255&0\\0&109&0&205&0&848&0&0&1387&0&679&0&2255&3493&0\\24&0&280&0&392&0&1176&1432&0&1208&0&2840&0&0&6848\end{bmatrix}$

$\ \ \ \mathrm{E}\left[\chi_i^2\right] = \begin{bmatrix}1&9&26&19&44&248&239&338&565&226&164&1315&1494&3493&6848&3411&3448&8282&7125&1997\end{bmatrix}$

Event probabilities

$\mathrm{Pr}[a_i=n]=0$ for $i=1,2,3$ and $n\in\mathbb{Z}$.