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Bug #159

Multiplicity sometimes wrong

Added by John Abbott almost 12 years ago. Updated almost 12 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Anna Maria Bigatti
Category:
Incomplete function
Target version:
CoCoA-5.0.3
Start date:
15 May 2012
Due date:
% Done:

100%

Estimated time:
3.50 h
Spent time:
3.50 h

Description

It seems to work OK for monomial ideals, but...

Use P ::= QQ[x];
I := Ideal((x-1)^3);
Multiplicity(P/I);
--> 2 ?!?
I := Ideal(x^3);
Multiplicity(P/I);
--> 3  OK!

Related issues

Related to CoCoA-5 - Bug #166: Dim/Multiplicity with Lex ordering -- NYIClosed2012-05-23

History

#1 Updated by Anna Maria Bigatti almost 12 years ago

  • Status changed from New to Resolved
  • Assignee set to Anna Maria Bigatti
  • Target version set to CoCoA-5.0.3

#2 Updated by Anna Maria Bigatti almost 12 years ago

Add also Dim&Mult for non-standard degree (or no degree, such as with Lex)
They are defined independently of the grading, and they can be computed homogenizing /wrt/ the standard grading.

#3 Updated by Anna Maria Bigatti almost 12 years ago

  • Category set to Incomplete function
  • Status changed from Resolved to Closed
  • % Done changed from 0 to 100

#4 Updated by Anna Maria Bigatti almost 12 years ago

  • Estimated time set to 3.50 h

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