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See also: A2(z)
—az2.1—a2'
and this is the red'iced generating See also: function which tells us, by its denominator factors, that the See also: complete See also: system of the quadratic is composed of the See also: form itself of degree See also: order I, 2 shown by az2, and of the See also: Hessian of degree order 2, o shown by a2
.
Again, for the cubic, we can find
Aa(z) 1 —aez6
1—az2 .1—a2z2.1—a2z2 .1—a*,
where the ground forms are indicated by the denominator factors, viz.: these are the cubic itself of degree order I, 3; the Hessian of degree order 2, 2; the cubi-covariant G of degree order 3, 3, and the quartic invariant of degree order 4, o
.
Further, the numerator factor establishes that these are not all algebraically See also: independent, but are connected by a syzygy of degree order 6, 6
.
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