问个关于复形之和的边界问题

lilianjie

X:=**x(0);
X;
X2:=
**x(1);X2;
2 A: o7 N& z+ _X3:=**x(2);X3;
5 A, U+ h# P3 y7 k- u, t8 rX4:=
9 D- p; @" ]1 V. X* v2 Z& p* F6 u**x(3);X4;
5 l# O/ r2 K1 L2 K& rX5:=
6 G2 I' h" Q7 P**x(4);X5;
# l% M, F7 \) b7 y( x- _& b/ g% ~( b
: g6 E% y  {+ _) S% Q+ `
XX:=Normalization(X5) ;
XX;
S:=Shift(XX, -2);
S;
; v5 `. T; N  `1 }* w( dBoundary(X5) ;
Boundary(S) ;
' \, a/ ?) P1 w- m+ {* XK:=S + X5;K;
; |) b5 p" P/ B' t: W
Boundary(K) ;

7 D: g/ H! A0 O; I) D0 f
Simplicial complex
[
    { 1 }
]

4 `. F! c" E! O+ I- e' XSimplicial complex
[
+ f- l+ C# H7 Q; \" ?; y9 @    { 1, 2 }
]

Simplicial complex
[
+ @! \/ W) ?6 o7 Q' a1 a$ u6 ]2 z! W! [    { 1, 2, 3 }
. \& j/ u4 W1 B+ b# l]

Simplicial complex
[
    { 1, 2, 3, 4 }
]
9 L- c3 \; E' f/ R" @4 d. t
$ C* l4 n! y! MSimplicial complex
( f2 O' g. z0 W! I[
    { 1, 2, 3, 4, 5 }
- ~. G$ t" E# d$ r]

4 l; v0 H2 A/ C2 mSimplicial complex
[
7 \4 B, N! x# k" s" ^# Y    { 1, 2, 3, 4, 5 }
]

& R% c, W1 ^. V& \% L' h& ^Simplicial complex
3 O1 P4 R0 S$ h9 k[
" g' E$ y' d( X+ c    { -1, 0, 1, 2, 3 }
* o$ F+ f4 {: d3 P8 P; H9 F]

- U! n+ _* p" b# G& W4 b& h6 MSimplicial complex
4 u$ [; G8 S  t[
    { 1, 2, 4, 5 },
6 j4 ]8 y" d) I- X    { 1, 2, 3, 4 },
4 @6 ^" x  u) i- O) q) S( E    { 1, 3, 4, 5 },
! j/ W7 v6 ^5 y# z& R0 d    { 1, 2, 3, 5 },
' z- V7 N6 n0 M$ f& ~' k5 h6 ]    { 2, 3, 4, 5 }
/ q7 s7 j& \8 t9 f/ a]

Simplicial complex
[
. f4 G4 j2 R: g# p- `4 w    { -1, 0, 1, 3 },
    { -1, 1, 2, 3 },
; G$ }5 P9 ]8 R: b" @4 ]    { 0, 1, 2, 3 },
$ c1 n) p1 B: C+ l    { -1, 0, 1, 2 },
    { -1, 0, 2, 3 }
/ v! h& }- w: J% s8 F9 }9 J]
5 n# L9 B! U8 ~) i- W  Z6 g
Simplicial complex
[
2 v: ]0 [. Y, [! o$ p" B: u    { 4, 5, 6, 7, 8 },
    { -1, 0, 1, 2, 3 }
]
* [8 r/ r) Y8 G1 ~  DSimplicial complex
[
    { 0, 1, 2, 3 },
    { 4, 5, 6, 8 },
    { 4, 5, 7, 8 },
    { 5, 6, 7, 8 },
    { -1, 0, 1, 3 },
    { -1, 0, 2, 3 },
5 ^! X, x* q% f    { 4, 5, 6, 7 },
) O  F9 P% M0 ?3 Q: ^1 i; ^# u. S    { 4, 6, 7, 8 },
/ B' }; u4 x* K" l$ @& w: A. y& X    { -1, 0, 1, 2 },
    { -1, 1, 2, 3 }
) c  z% U! \* H. S$ e]
" p3 Z$ z/ c/ X, H) l. U, z
2 v# I* _# f/ r
# w0 B- [! O" W' x8 S边界之和是怎样算出的？
    { 4, 5, 6, 7, 8 },
    { -1, 0, 1, 2, 3 }



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