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Faugère's F4 Algorithm

asked 2012-01-17 15:40:56 -0600

process91 gravatar image

There are many places online which mention that Faugère's F4 (and even F5) algorithms are included (or were going to be included) in Sage, but the only result in the documentation I can find is here: http://www.sagemath.org/doc/reference...

Does anyone know if it is currently included in Sage?

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answered 2012-01-17 19:13:21 -0600

Simon King gravatar image

As much as I know, there are only toy implementations of F5 in Sage (and I don't recall how it is available) - that's to say, they are good for educational purposes, but it would be much more efficient to use the default ways of computing Gröbner bases.

Note that Michael Brickenstein's "slimgb" (which is often used in Singular and thus also in Sage) is sometimes referred to as a version of F4. If you create a multivariate ideal J and want to compute its Gröbner basis with a particular algorithm, you can use something like

J.groebner_basis(algorithm='slimgb')
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Thanks, that is what I have found as well. It looks like the command is actually J.groebner_basis('singular:slimgb')

process91 gravatar imageprocess91 ( 2012-01-18 05:32:31 -0600 )edit

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Asked: 2012-01-17 15:40:56 -0600

Seen: 688 times

Last updated: Jan 17 '12