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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