[sage-devel] Re: Projects

2007-12-26 Thread John Cremona
Sorry about that -- I think both volumes possibly have the full contents to both volumes in them. Anyway, I would recommend both volumes, and hope you do not regret your purchase. John On 26/12/2007, bill.p <[EMAIL PROTECTED]> wrote: > > On Nov 21, 10:59 pm, "John Cremona" <[EMAIL PROTECTED]> w

[sage-devel] Re: Projects

2007-12-26 Thread bill.p
On Nov 21, 10:59 pm, "John Cremona" <[EMAIL PROTECTED]> wrote: > William suggested that I wrote a paragraph or two describing what > would be involved for the S-integralpoints implementation. I have > not done so yet, but this email might contain enough to get someone > started, I spent some tim

[sage-devel] Re: Projects

2007-11-21 Thread mhampton
Polymake fails to meet my needs because I am interested in really large, high-dimensional polytopes, and doing anything in exact arithmetic with them is challenging. Fukuda's cdd is the best serial program at computing degenerate high-dimensional convex hulls exactly, but it gets overwhelmed by s

[sage-devel] Re: Projects

2007-11-21 Thread John Cremona
William suggested that I wrote a paragraph or two describing what would be involved for the S-integral points implementation. I have not done so yet, but this email might contain enough to get someone started, I spent some time yesterday looking up the literature on this, and there is quite a lo

[sage-devel] Re: Projects

2007-11-21 Thread William Stein
On Nov 21, 2007 11:16 AM, mhampton <[EMAIL PROTECTED]> wrote: > > I have a project that I have meant to tackle myself, but I doubt I > will have time to do it for at least a year, so someone can beat me to > it (just let me know!): > > Write a parallellized (DSage!) algorithm/implementation to com

[sage-devel] Re: Projects

2007-11-21 Thread mhampton
I have a project that I have meant to tackle myself, but I doubt I will have time to do it for at least a year, so someone can beat me to it (just let me know!): Write a parallellized (DSage!) algorithm/implementation to compute convex hulls of rational points in n-dimensional space, using exact

[sage-devel] Re: Projects

2007-11-21 Thread William Stein
On Nov 21, 2007 8:11 AM, sms <[EMAIL PROTECTED]> wrote: > thanks for inviting me to become a member here! Welcome to sage-devel! > > David: I am working in Algebraic Geometry (algebraic cycles and K- > theory) mainly but teach almost entirely number theory and hence > essentially only give

[sage-devel] Re: Projects

2007-11-21 Thread sms
Hi, thanks for inviting me to become a member here! David: I am working in Algebraic Geometry (algebraic cycles and K- theory) mainly but teach almost entirely number theory and hence essentially only give away thesis topics in number theory. By the way I got into all this after writing a

[sage-devel] Re: Projects

2007-11-19 Thread William Stein
On Nov 19, 2007 9:49 AM, John Cremona <[EMAIL PROTECTED]> wrote: > > My suggestion for such a project is: compute all the S-integral > points on an elliptic curve (which is a finite set, for any given > finie set of primes S). First, over Q (assume that you are given a > Mordell-Weil basis), whi

[sage-devel] Re: Projects

2007-11-19 Thread John Cremona
My suggestion for such a project is: compute all the S-integral points on an elliptic curve (which is a finite set, for any given finie set of primes S). First, over Q (assume that you are given a Mordell-Weil basis), which is also implemented in Magma. Then, over number fields -- not implement

[sage-devel] Re: Projects

2007-11-19 Thread William Stein
On Nov 19, 2007 9:38 AM, David Joyner <[EMAIL PROTECTED]> wrote: > > On Nov 19, 2007 12:21 PM, Martin Albrecht <[EMAIL PROTECTED]> wrote: > > > > Hi there, > > > > at Sage Days 6 Stefan Müller-Stach > > > >http://hodge.mathematik.uni-mainz.de/~stefan/index.html > > > > babelfish translation: >

[sage-devel] Re: Projects

2007-11-19 Thread David Joyner
On Nov 19, 2007 12:21 PM, Martin Albrecht <[EMAIL PROTECTED]> wrote: > > Hi there, > > at Sage Days 6 Stefan Müller-Stach > >http://hodge.mathematik.uni-mainz.de/~stefan/index.html > > babelfish translation: > > http://babelfish.altavista.com/babelfish/tr?lp=de_en&url=http%3A//hodge.mathematik