Opened 16 years ago
Closed 16 years ago
#253 closed enhancement (fixed)
Add Integral closure for ideals
Reported by: | was | Owned by: | somebody |
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Priority: | major | Milestone: | |
Component: | basic arithmetic | Keywords: | |
Cc: | Merged in: | ||
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Description
On Fri, 09 Feb 2007 11:04:16 -0700, Milena Hering wrote: > Hi William, > > Is it possible to compute the integral closure of an ideal in sage? It's not nicely integrated into SAGE yet, but the capability is there via Singular, which is included in SAGE. For example: sage: singular.load('reesclos.lib') sage: R.<x,y> = QQ[] sage: i = ideal([x^2,x*y^4,y^5]) sage: singular(i).normalI() # the [1] part gives the normalization [1]: _[1]=x^2 _[2]=y^5 _[3]=x*y^3 --- Very likely somebody will add this functionality to the next version of SAGE, i.e., so you could type i.integral_closure(), and get back the ideal as a SAGE ideal. William
Change History (2)
comment:1 Changed 16 years ago by
comment:2 Changed 16 years ago by
- Resolution set to fixed
- Status changed from new to closed
Done in r2854.
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See http://www.singular.uni-kl.de/Manual/3-0-1/sing_788.htm