spielwiese
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Last change
on this file since a7efa79 was
a7efa79,
checked in by Hans Schönemann <hannes@…>, 16 years ago
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*hannes: new book version
git-svn-id: file:///usr/local/Singular/svn/trunk@10182 2c84dea3-7e68-4137-9b89-c4e89433aadc
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Property mode set to
100644
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File size:
566 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 | ================================= example 4.7.7 ============================ |
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| 5 | |
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| 6 | LIB"primdec.lib"; |
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| 7 | ring R=0,(x,y,z),lp; |
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| 8 | ideal I=z2-2, y2+2y-1, (y+z+1)*x+yz+z+2, x2+x+y-1; |
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| 9 | minAssGTZ(I); |
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| 10 | |
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| 11 | option(redSB); //a reduced lex Groebner basis is needed |
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| 12 | I=std(I); //as input for triangMH (algorithm |
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| 13 | triangMH(I,2); //of Moeller, Hillebrand) |
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| 14 | |
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| 15 | std(quotient(I,y+z+1)); //the second triangular set |
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| 16 | |
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| 17 | std(I,y+z+1); //the first triangular set |
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| 18 | //(recall the meaning of std(I, f)) |
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| 19 | |
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| 20 | |
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| 21 | tst_status(1);$ |
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| 22 | |
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