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Bug #643

GenRepr fails if there are zero generators

Added by John Abbott over 9 years ago. Updated almost 9 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Anna Maria Bigatti
Category:
Incomplete function
Target version:
CoCoA-5.1.2 summer 2015
Start date:
29 Oct 2014
Due date:
% Done:

100%

Estimated time:
3.00 h
Spent time:
2.75 h

Description

GenRepr should not give error in this instance:

I := ideal(x+y^2, zero(R), x^2-x*y);
GenRepr(x^3-x^2*y-y^3-x*y, I);
--> ERROR: Non-zero RingElem required
--> WHERE: at line 277 (column 27) of hilop.cpkg5
-->   S := GetRows(GensAsRows(SyzOfGens(X)));
-->                           ^^^^^^^^^^^^
CONTEXT: function GenRepr at line 277 of hilop.cpkg5
 called at top-level

Related issues

Related to CoCoA-5 - Bug #1781: GenReprCompute: SERIOUS ERRORFeedback2024-02-08

History

#1 Updated by Anna Maria Bigatti almost 9 years ago

  • Status changed from New to Feedback
  • Assignee set to Anna Maria Bigatti
  • % Done changed from 0 to 90
  • Estimated time set to 3.00 h

Done (hilop.cpkg5)

#2 Updated by Anna Maria Bigatti almost 9 years ago

  • Status changed from Feedback to Closed
  • % Done changed from 90 to 100

#3 Updated by Anna Maria Bigatti 3 months ago

  • Related to Bug #1781: GenReprCompute: SERIOUS ERROR added

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