Re: [sage-devel] Re: A Sage interface for FGb (Gröbner bases)
Hi! On 2018-11-26, parisse wrote: > not as complete: a quick look indicates that monomial ordering supported > are revlex and lex (no elimination, this is probably not hard to add), and > coefficients must belong to Z/pZ (support for Q would require more work...) What is your definition of "elimination order"? If I understand correctly, lex *is* an elimination order. Best regards, Simon -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
[sage-devel] Re: A Sage interface for FGb (Gröbner bases)
Le lundi 26 novembre 2018 17:16:16 UTC+1, Bill Hart a écrit : > > > > > From his recent talks, his implementation is nowadays more than > competitive. > I confirm that his timings are very good: for example almost 3 times faster than Giac for cyclic9 modular. On the other hand, the implementation seems not as complete: a quick look indicates that monomial ordering supported are revlex and lex (no elimination, this is probably not hard to add), and coefficients must belong to Z/pZ (support for Q would require more work...) -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
[sage-devel] Re: A Sage interface for FGb (Gröbner bases)
On Saturday, 24 November 2018 20:25:13 UTC+1, john_perry_usm wrote: > > I walk into this discussion with some hesitancy, but Christian Eder has > developed a rather efficient F4 algorithm. [1] I know it works and is quite > fast, though I haven't compared it to the implementations mentioned above. > Unfortunately, I haven't heard from him in a while after he went off to > Iran for a few weeks, and he doesn't seem to have updated his site since > then, either. > I assure you he is quite alive. I saw him a few minutes ago! >From his recent talks, his implementation is nowadays more than competitive. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-devel] A Sage interface for FGb (Gröbner bases)
For GB addict, yet another open source implementation: https://gforge.inria.fr/projects/tinygb/ -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
