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| on the specialization of families https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=1677 |
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| Author: | Dmitry [ Thu Jul 10, 2008 7:35 am ] |
| Post subject: | on the specialization of families |
Is there some specific command for the following: given a family of germs $X_t$ for t small but not 0, i.e. an ideal I in C{x_1..x_n,t,t^{-1}}. find the ideal of $X_0$. of course this can be done "manually" by first calculating the syzygies for the generic fibre, then taking t->0. Probably there exists some simple ready command? If one such a command doesn't exist, where can I find an example of such procedure (with explicit syntax). thanks |
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| Author: | greuel [ Sun Mar 29, 2009 6:49 pm ] |
| Post subject: | |
There is, at the moment, no simple command for what you are looking for. Help for writing your own procedures, with many examples, can be found either in the Singular Manual: A. Examples, A.1 Programming, A.1.2 Writing procedures and libraries or in the book G.-M. Greuel, G. Pfister: A SINGULAR Introduction to Commutative Algebra. Springer Verlag |
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