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Viergruppe

The mathematical group $Z_2\otimes Z_2$, also denoted $D_2$. Its multiplication table is

$V$ $I$ $V_1$ $V_2$ $V_3$
$I$ $I$ $V_1$ $V_2$ $V_3$
$V_1$ $V_1$ $I$ $V_3$ $V_2$
$V_2$ $V_2$ $V_3$ $I$ $V_1$
$V_3$ $V_3$ $V_2$ $V_1$ $I$

See also Dihedral Group, Finite Group Z4




© 1996-9 Eric W. Weisstein
1999-05-26