This doesn't seem to happen for smaller values, sage: n = 2; q = 3 sage: H = PSL(n,q^2) sage: H.center() Permutation Group with generators [()] sage: n = 2; q = 2 sage: H = PSL(n,q^2) sage: H.center() Permutation Group with generators [()]
so maybe the problem is related to http://trac.sagemath.org/sage_trac/ticket/5491? On Sun, Mar 15, 2009 at 3:07 PM, Martin Mereb <mme...@gmail.com> wrote: > > and > also got this problem > > n=3;q=4; > > H = SL(n,q^2); > H.center() > > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File "/home/sage/sagenb/sage_notebook/worksheets/Tincho/3/code/3.py", > line 10, in <module> > H.center() > File > "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/SQLAlchemy-0.4.6-py2.5.egg/", > line 1, in <module> > > File > "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/groups/matrix_gps/matrix_group.py", > line 678, in center > self.__center = MatrixGroup([g._matrix_(F) for g in G]) > File > "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/interfaces/gap.py", > line 1131, in _matrix_ > entries = [[R(self[r,c]) for c in range(1,m+1)] for r in range(1,n+1)] > File "finite_field_givaro.pyx", line 586, in > sage.rings.finite_field_givaro.FiniteField_givaro.__call__ > (sage/rings/finite_field_givaro.cpp:4680) > File > "/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/sage/interfaces/gap.py", > line 1248, in gfq_gap_to_sage > return F(K(g**e)) > File "finite_field_givaro.pyx", line 530, in > sage.rings.finite_field_givaro.FiniteField_givaro.__call__ > (sage/rings/finite_field_givaro.cpp:4005) > TypeError: unable to coerce from a finite field other than the prime subfield > > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
