#17627: Construction of FinitelyGeneratedGroup from GAP group
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Reporter: vdelecroix | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.5
Component: group theory | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by captaintrunky):
Hi!
I'm working on this ticket currently. I think that it is more or less
ready, but I struggle with the following behavior:
{{{
f = FreeGroup("x,y")
g = f/ [x^2*y^-1, x^3*y^2, x*y*x^-1*y^-1]
NameError Traceback (most recent call
last)
<ipython-input-4-6f3ccf45fba8> in <module>()
----> 1 g = f/ [x**Integer(2)*y**-Integer(1), x**Integer(3)*y**Integer(2),
x*y*x**-Integer(1)*y**-Integer(1)]
NameError: name 'y' is not defined
}}}
while
{{{
f.<x,y> = FreeGroup()
g = f/ [x^2*y^-1, x^3*y^2, x*y*x^-1*y^-1]
}}}
works without any issues. Probably I'm missing something obvious, but how
can I 'register' variables globally without <,> notion? Is there some sort
of function that is wrapped by <>? My goal is to write something like
this:
{{{
names = repr(free_group.GeneratorsOfGroup()).strip('[ ]')
free_group = FreeGroup(names)
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/17627#comment:2>
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