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2 - Dept. Math, Hokkaido Univ. EPrints Server

2 - Dept. Math, Hokkaido Univ. EPrints Server

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This contradicts the minimality of c .<br />

1<br />

(1.9) Now let P be<br />

-<br />

a smooth point of the image q(P ) (= C)<br />

1. 8 and let : o P<br />

1<br />

E a map with a point o in P .<br />

Then, ir is known that<br />

1<br />

Hom(P , ; 1 is a cl~sed subscheme in<br />

~orn(P' S ) by Proposition 1 in ['lo].<br />

Hence, letting Hp = (b- E H I v( o ) = P), we must remark that Hp =<br />

H n Hom i ~ l X;L) , as a set.<br />

Sow we has-e<br />

1<br />

(19.1 Remark. 1) Let v be an element in H xith \-(P R?-.<br />

*<br />

Then, v T is GS and hence B is sinooth at [v] because of the<br />

4<br />

1 1 *<br />

fact H (E' ,v TI S<br />

0 1(-1)) = 0 by Proposition 1.7.<br />

P<br />

Hence if P is not ic R-I01 ) Ler f be a non-sln2ular<br />

projective<br />

1<br />

variety, V a variety and g: P 1 C - Y a morphism<br />

satisfyin2 the fol101,-ing properties:<br />

1) for each point u i n U, g(pl,u) (= C is a cur\-e in 3 and for<br />

11<br />

.LA

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