#8481: lift doesn't work for vector space homomorphisms
------------------------------+---------------------------------------------
Reporter: jhpalmieri | Owner: was
Type: defect | Status: new
Priority: minor | Milestone: sage-4.3.4
Component: linear algebra | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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{{{
sage: V = QQ**2
sage: W = QQ**2
sage: f = V.hom([W.1, W.1])
sage: f.lift(W.1)
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
/Users/palmieri/<ipython console> in <module>()
/Applications/sage/local/lib/python2.6/site-
packages/sage/modules/free_module_morphism.pyc in lift(self, x)
337 x = self.codomain()(x)
338 A = self.matrix()
--> 339 H, U =
A.hermite_form(transformation=True,include_zero_rows=False)
340 Y = H.solve_left(vector(self.codomain().coordinates(x)))
341 C = Y*U
...
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8481>
Sage <http://www.sagemath.org>
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