| 1 | LIB "tst.lib"; |
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| 2 | tst_init(); |
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| 3 | ring an=32003,(w,x,y,z),(dp,C); |
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| 4 | ideal i= |
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| 5 | 0, |
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| 6 | 0, |
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| 7 | 1w2xy+1w2xz+1w2yz+1wxyz+1x2yz+1xy2z+1xyz2, |
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| 8 | 1w4x+1w4z+1w3yz+1w2xyz+1wx2yz+1x2y2z+1xy2z2, |
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| 9 | 1w6+1w5z+1w4xz+1w3xyz+1w2xy2z+1wx2y2z+1x2y2z2; |
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| 10 | resolution rs=nres(i,0); |
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| 11 | print(betti(rs),"betti"); |
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| 12 | print(betti(rs,0),"betti"); |
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| 13 | kill basering; |
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| 14 | ring an=32003,(w,x,y,z),(dp,c); |
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| 15 | ideal i= |
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| 16 | wx2+y3, |
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| 17 | xy2+z3, |
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| 18 | 0, |
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| 19 | 0, |
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| 20 | yz2+w3, |
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| 21 | zw2+x3, |
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| 22 | xyz+yzw+zwx+wxy; |
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| 23 | resolution rs=nres(i,0); |
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| 24 | print(betti(rs),"betti"); |
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| 25 | print(betti(rs,0),"betti"); |
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| 26 | kill basering; |
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| 27 | ring an=32003,(w,x,y,z),(dp,c); |
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| 28 | ideal i= |
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| 29 | wx+y2, |
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| 30 | 0, |
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| 31 | 0, |
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| 32 | xy+z2, |
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| 33 | yz+w2, |
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| 34 | zw+x2, |
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| 35 | xy+yz+zw+wx; |
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| 36 | resolution rs=nres(i,0); |
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| 37 | print(betti(rs),"betti"); |
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| 38 | print(betti(rs,0),"betti"); |
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| 39 | kill basering; |
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| 40 | ring an=32003,(x,y,z),(dp,c); |
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| 41 | ideal i= |
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| 42 | zx2+y3, |
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| 43 | xy2+z3, |
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| 44 | 0, |
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| 45 | 0, |
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| 46 | yz2+x3, |
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| 47 | x2y+y2z+z2x; |
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| 48 | resolution rs=nres(i,0); |
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| 49 | print(betti(rs),"betti"); |
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| 50 | print(betti(rs,0),"betti"); |
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| 51 | kill basering; |
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| 52 | tst_status(1);$ |
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