#12803: quotient of ideals throws up Singular bug
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Reporter: mariah | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone: sage-5.0
Component: algebra | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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{{{
sage: var('x,y,z')
(x, y, z)
sage: R = ZZ[x,y,z]
sage: A = R.ideal([x^2, x*y, x*z])
sage: B = R.ideal([x])
sage: A.quotient(B)
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call
last)
/home/mariah/sage/sage-4.8-x86_64-Linux-core2-fc/<ipython console> in
<module>()
/home/mariah/sage/sage-4.8-x86_64-Linux-core2-fc/local/lib/python2.6/site-
packages/sage/rings/polynomial/multi_polynomial_ideal.pyc in
wrapper(*args, **kwds)
500 """
501 with LibSingularDefaultContext():
--> 502 return func(*args, **kwds)
503 return wrapper
504
/home/mariah/sage/sage-4.8-x86_64-Linux-core2-fc/local/lib/python2.6/site-
packages/sage/rings/polynomial/multi_polynomial_ideal.pyc in
quotient(self, J)
2224 import sage.libs.singular
2225 quotient = sage.libs.singular.ff.quotient
-> 2226 return R.ideal(quotient(self, J))
2227
2228 @require_field
/home/mariah/sage/sage-4.8-x86_64-Linux-core2-fc/local/lib/python2.6/site-
packages/sage/libs/singular/function.so in
sage.libs.singular.function.SingularFunction.__call__
(sage/libs/singular/function.cpp:10130)()
/home/mariah/sage/sage-4.8-x86_64-Linux-core2-fc/local/lib/python2.6/site-
packages/sage/libs/singular/function.so in
sage.libs.singular.function.call_function
(sage/libs/singular/function.cpp:11392)()
/home/mariah/sage/sage-4.8-x86_64-Linux-core2-fc/local/lib/python2.6/site-
packages/sage/libs/singular/function.so in
sage.libs.singular.function.call_function
(sage/libs/singular/function.cpp:11306)()
RuntimeError: Segmentation fault
sage:
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12803>
Sage <http://www.sagemath.org>
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