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From: chiaki@kit.ac.jp (Tsukamoto Chiaki)
Newsgroups: fj.sci.math
Subject: Re: $B<-=q<0(B
Date: Sat, 20 Sep 2008 02:12:48 +0900
Organization: Kyoto Institute of Technology
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$B9)A!Bg$NDMK\$G$9(B. $BM>$j8e$N5DO@$K$O4X78$"$j$^$;$s$,(B,

In article <e51f9bc4-36ec-4916-8dde-cf6d9e676448@i24g2000prf.googlegroups.com>
cchikakoo <cchikakoo@yahoo.co.jp> writes:
> S:={(x,y)$B":(BI$B!_(BI;((1/n+1/(n+1))/2,0)<'x<'((1/n/(n-1))/2,0)}

! S:={(x,y)$B":(BI$B!_(BI;((1/n+1/(n+1))/2,0)<'x<'((1/n+1/(n-1))/2,0)}

$B$G$9$+(B.

> A$B$K$D$$$F$O(B
> http://beauty.geocities.jp/noname45754/topology/A.jpg
> $B$H$J$j(BG$B$K(BA$B$NE@$r4^$^$k$HI,$:(BA^c$B$NE@$b4^$s$G$7$^$&$N$G(BA$B">(BBdA$B$G$^$?(B
> $BE@(B(0,1)$B$b$I$s$J$K=L$a$F$b(BA$B$NE@$r4^$s$G$7$^$&$N$G(B(0,1)$B">(BBdA
> $B$7$?$,$C$F(Bcls(A)=A$B"@(B{(0,1)}$B$G$9$M!#(B

$B$=$NDL$j$G$9(B. $B$5$F(B, $BE@(B (0, 1) $B$r4^$`$I$s$J3+6h4V$b(B A $B$NE@$r4^$`(B,
$B$H$$$&$3$H$r$-$A$s$H<($;$?$N$G$"$l$P(B,

> B$B$K$D$$$F$O(B
> http://beauty.geocities.jp/noname45754/topology/B.jpg
> $B$H$J$j(B,cls(B)=B

$B$3$l$,4V0c$$$G$"$k$3$H$bJ,$+$kH&$G$9(B. $B$D$^$j(B, $BE@(B (1, 0) $B$r4^$`(B
$B$I$s$J3+6h4V$b(B, $B$"$k<+A3?t(B n $B$K$D$$$F(B, (1-1/n, 1/2) $B$N7A$NE@$r(B
$B4^$`(B. cls(B) = B $B"@(B {(1, 0)} $B$G$9(B.

> C$B$K$D$$$F$O(B
> h ttp://beauty.geocities.jp/noname45754/topology/C.jpg
> $B$H$J$j(B,A$B$N;~$HF1MM$KE@(B(0,1)$B$d(B(1,0)$B$r(BG$B$K4^$^$;$k$H$=$N(BG$B$O(BA$B$NE@$b4^$s$G$7$^$&!#(B
> $B$h$C$F(B(0,1),(1,0)$B":(BBdC$B99$K(B{(x,1)$B":(BR^2;0$B!e(Bx<1}$B$K$D$$$F$bF1MM$N$3$H$,8@$((B,
> cls(C)=C$B"@(B{(1,0)}$B"@(B{(x,1)$B":(BR^2;0$B!e(Bx<1}.

 cls(C) $B$K(B (1, 0) $B$,F~$k$3$H$,J,$+$k$N$J$i(B, cls(B) $B$KF~$k$3$H$b(B
$BJ,$+$kH&$G$9$M(B.

> D$B$K$D$$$F$O(B
> http://beauty.geocities.jp/noname45754/topology/D.jpg
> $B$H$J$j(B,cls(D)=D$B"@(B{(x,1)$B":(BR^2;0$B!e(Bx<1}$B"@(B{(x,0)$B":(BR^2;0<x$B!e(B1}.
> 
> E$B$K$D$$$F$O(B
> http://beauty.geocities.jp/noname45754/topology/E.jpg
> $B$H$J$j(B,IntE=E, BdE={(1/2,0),(1/2,1)}$B$J$N$G(B
> cls(E)=E$B"@(B{(1/2,0),(1/2,1)}
> 
> $B$H$J$k$N$G$9$M!#(B

 B $B0J30$N7k2L$O$=$l$G@5$7$$$o$1$G$9$,(B, $B?^$O$"$/$^$G$b<j3]$+$j(B
$B$H$7$F(B, $BO@M}$G<($9$3$H$r;n$_$i$l$?J}$,NI$$$H;W$$$^$9(B.
-- 
$BDMK\@i=)(B@$B1~MQ?t3X(B.$B4pHW2J3XItLg(B.$B5~ET9)7]A!0]Bg3X(B
Tsukamoto, C. : chiaki@kit.ac.jp
