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Bug #510

SyzOfGens (CoCoALib): fix shifts

Added by Anna Maria Bigatti almost 10 years ago. Updated almost 10 years ago.

Status:
Closed
Priority:
Normal
Category:
Maths Bugs
Start date:
02 Apr 2014
Due date:
% Done:

100%

Estimated time:
2.00 h
Spent time:

Description

Example in CoCoA-5

/**/  Use R ::= QQ[x,y];
/**/  I := ideal(x^2, y^2, x+y);
/**/  G := gens(SyzOfGens(I));
/**/  IsHomog(G[1]);
false

It should be true, with the correct shifts.


Related issues

Precedes CoCoA-5 - Bug #509: SyzOfGens (CoCoA-5) does not have correct shiftsClosed2014-04-03

History

#1 Updated by John Abbott almost 10 years ago

  • Target version changed from CoCoALib-0.99533 Easter14 to CoCoALib-0.99534 Seoul14

#2 Updated by Anna Maria Bigatti almost 10 years ago

  • Status changed from New to Feedback
  • Target version changed from CoCoALib-0.99534 Seoul14 to CoCoALib-0.99533 Easter14
  • % Done changed from 0 to 90
  • Estimated time set to 2.00 h

Implemented.
Testing will mostly be done in CoCoA-5 issue #509, but a test should be added in CoCoALib as well.

#3 Updated by Anna Maria Bigatti almost 10 years ago

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

#4 Updated by Anna Maria Bigatti almost 10 years ago

  • Subject changed from SyzOfGens (CoCoALib) does not have correct shifts to SyzOfGens (CoCoALib): fix shifts

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