Re: nffactor() regression

[Igor Schein <igor@txc.com>]

On Tue, Jun 18, 2002 at 12:36:12PM +0200, Karim BELABAS wrote:
> On Mon, 17 Jun 2002, Igor Schein wrote:
> > Here's another infinite loop:
> >
> > nffactor(nfinit(polcyclo(5,y)),x^48+12*x^46+948*x^44+7200*x^42+152361*x^40+815832*x^38+9475380*x^36+44654004*x^34+299137536*x^32+1335241260*x^30+5029216452*x^28+15282825984*x^26+37737671337*x^24+79579803672*x^22+143658877428*x^20+222699104460*x^18+303698198961*x^16+348787956312*x^14+312863646960*x^12+212893847424*x^10+111407984496*x^8+43762394880*x^6+11836253952*x^4+1904684544*x^2+136048896);
> 
> Generators for Van Hoeij's lattice contained 0 elements, I removed them.

? nffactor(nfinit(polsubcyclo(17,8,y)),x^48-104*x^46+4664*x^44-122476*x^42+2137838*x^40-26567700*x^38+245144964*x^36-1725955872*x^34+9441692003*x^32-40611588 644*x^30+138356971048*x^28-374714866240*x^26+807289826646*x^24-1380693858220*x^22+1866021172640*x^20-1978766780068*x^18+1630151673857*x^16-1029505301024*x^14 +489498952012*x^12-170832297056*x^10+42133382284*x^8-6904507136*x^6+669868016*x^4-28899680*x^2+16)
  ***   bug in LLL_cmbf [no factor], please report

Thanks

Igor