spielwiese
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Last change
on this file since 107aac was
891438c,
checked in by Gerhard Pfister <pfister@…>, 23 years ago
|
|
*GP: initial release
git-svn-id: file:///usr/local/Singular/svn/trunk@5579 2c84dea3-7e68-4137-9b89-c4e89433aadc
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-
Property mode set to
100644
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File size:
870 bytes
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| 1 | LIB "tst.lib"; |
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| 2 | tst_init(); |
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| 3 | |
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| 4 | option(redSB); |
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| 5 | ring R=0,(x,y),lp; |
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| 6 | ideal a1=x; |
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| 7 | ideal a2=y2+2y+1,x-1; |
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| 8 | ideal a3=y2-2y+1,x-1; |
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| 9 | ideal I=intersect(a1,a2,a3); |
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| 10 | poly h=y4-2y2+1; |
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| 11 | |
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| 12 | ideal I2=std(I,h); |
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| 13 | |
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| 14 | indepSet(I2); |
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| 15 | |
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| 16 | list fac=factorize(I2[1]); |
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| 17 | fac; |
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| 18 | |
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| 19 | ideal J1=std(I2,(y+1)^2); |
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| 20 | ideal J2=std(I2,(y-1)^2); |
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| 21 | |
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| 22 | J1; |
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| 23 | J2; |
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| 24 | |
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| 25 | map phi=R,x,x+y; |
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| 26 | map psi=R,x,-x+y; |
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| 27 | |
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| 28 | ideal K1=std(phi(J1)); |
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| 29 | ideal K2=std(phi(J2)); |
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| 30 | factorize(K1[1]); |
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| 31 | |
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| 32 | ideal K11=std(K1,(y+1)^2); |
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| 33 | |
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| 34 | ideal K12=std(K1,(y+2)^2); |
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| 35 | factorize(K2[1]); |
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| 36 | |
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| 37 | ideal K21=std(K2,(y-1)^2); |
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| 38 | |
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| 39 | ideal K22=std(K2,y2); |
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| 40 | K11=std(psi(K11)); |
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| 41 | |
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| 42 | K12=std(psi(K12)); |
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| 43 | K21=std(psi(K21)); |
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| 44 | K22=std(psi(K22)); |
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| 45 | K11; |
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| 46 | K12; |
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| 47 | K21; |
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| 48 | K22; |
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| 49 | |
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| 50 | tst_status(1);$ |
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