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Algebre di Lie semisemplici, sistemi di radici e loro classificazione

Algebre di Lie semisemplici, sistemi di radici e loro classificazione

Algebre di Lie semisemplici, sistemi di radici e loro classificazione

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⎛<br />

⎞<br />

2<br />

⎜ −1<br />

⎜<br />

Bp = ⎜<br />

⎝ 0<br />

−1<br />

2<br />

0<br />

0<br />

−1<br />

. . .<br />

0<br />

0<br />

0<br />

0<br />

. . .<br />

. . .<br />

. . .<br />

. . .<br />

0<br />

0<br />

−1<br />

0<br />

0<br />

2<br />

0<br />

⎟<br />

0<br />

⎟<br />

−2 ⎟<br />

⎠<br />

0 0 0 0 . . . 0 −1 2<br />

⎛<br />

⎞<br />

2<br />

⎜ −1<br />

⎜<br />

Cp = ⎜<br />

⎝ 0<br />

−1<br />

2<br />

0<br />

0<br />

−1<br />

. . .<br />

0<br />

0<br />

0<br />

0<br />

. . .<br />

. . .<br />

. . .<br />

. . .<br />

0<br />

0<br />

0<br />

−1<br />

0<br />

0<br />

0<br />

2<br />

0<br />

⎟<br />

0<br />

⎟<br />

0 ⎟<br />

−1 ⎟<br />

⎠<br />

0 0 0 0 . . . 0 −2 2<br />

⎛<br />

⎞<br />

2<br />

⎜ −1<br />

⎜<br />

Dp = ⎜ 0<br />

⎜ 0<br />

⎜<br />

⎝<br />

0<br />

−1<br />

2<br />

0<br />

0<br />

0<br />

0<br />

−1<br />

0<br />

0<br />

0<br />

. . .<br />

. . .<br />

. . .<br />

. . .<br />

. . .<br />

0<br />

0<br />

. . .<br />

−1<br />

0<br />

0<br />

0<br />

0<br />

2<br />

−1<br />

0<br />

0<br />

0<br />

−1<br />

2<br />

−1<br />

0<br />

0<br />

0<br />

−1<br />

2<br />

0<br />

⎟<br />

0<br />

⎟<br />

0 ⎟<br />

−1 ⎟<br />

0 ⎟<br />

⎠<br />

0 0 0 . . . 0 0 −1 0 2<br />

⎛<br />

⎞<br />

2<br />

⎜ 0<br />

⎜ −1<br />

E6 = ⎜ 0<br />

⎜<br />

⎝ 0<br />

0<br />

2<br />

0<br />

−1<br />

0<br />

−1<br />

0<br />

2<br />

−1<br />

0<br />

0<br />

−1<br />

−1<br />

2<br />

−1<br />

0<br />

0<br />

0<br />

−1<br />

2<br />

0<br />

⎟<br />

0<br />

⎟<br />

0 ⎟<br />

0 ⎟<br />

−1 ⎟<br />

⎠<br />

0 0 0 0 −1 2<br />

101

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