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1/11<br />
Say, P := (P1, · · · , Pn): C n → C n , assume #P −1 (0) < ∞<br />
Then (introductory lectures, October 2009) ⇒<br />
∞ > dimC<br />
C[x] <br />
=<br />
(P) · C[x]<br />
a∈P−1 dimC<br />
(0)<br />
C[x]a<br />
(P) · C[x]a<br />
deg Pj<br />
Let LPj(x) := HPj(0, x), where HPj(x0, x) := x0 · Pj( x<br />
x0 ).<br />
Assume also {LP1(x) = · · · = LPn(x) = 0} = {0} (∗)<br />
(so called “no solutions at ∞”) for C n ↩→ P n ⇒