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| Primary decomposition https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=1798 |
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| Author: | Noob [ Fri Feb 05, 2010 7:40 pm ] |
| Post subject: | Primary decomposition |
Why do I get different primary decompositions, and different sets of minimal prime ideals, using the algorithms primdecGTZ (minAssGTZ) and primdecSY (minAssChar).???? It actually is for a very simple homogeneous ideal; x^2 + y^2 + z^2, u^2 + xw + yz characteristic zero, five variables. Thank you for your help |
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| Author: | greuel [ Sun Feb 14, 2010 8:49 pm ] |
| Post subject: | Re: Primary decomposition |
The ideals are the same. You get only different sets of generators, due to the different algorithms. You can check this by either computing a Groebner basis of the ideals or by applying 'reduce'. |
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