Activity
From 21 May 2024 to 19 Jun 2024
19 Jun 2024
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21:08 Slug #1049: GroebnerFan: slow examples
- I confirm 9.8s on my linux laptop with a fresh CoCoA (5.4.1x)
I also tried with coeffs in @ZZ/(32003)@ and the tim... -
20:56 Bug #1371: French students' example with GFan
- The simplest matrix which works (that I have found so far) is;...
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20:23 Feature #1817: OSCAR/MaRDI JSON interface
- Ah well. Nearly 4 weeks later I think the doc for the MaRDI-JSON format is much better now, and the prototype in C++...
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20:20 Design #1689: Automatic mapping of RHS in += etc
- I have implemented the short-cuts for @op*=@ and @op/=@. All tests pass.
One minus point... here is the (simpler)... -
19:42 Bug #1705: ProgressReporter: prepare for new loop?
- We should arrange to share code between *@ProgressReporter@* and *@CpuTimeout@*.
They both monitor the passage of ti... -
19:37 Feature #1667: GBasis over ZZ: port to CoCoALib
- I am not sure exatly how the algorithm works, but do believe that it is important to handle monomial reducers special...
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19:35 Feature #1676: txt2tags: include in source distribution?
- Back in March (2024) I made a new script for releasing the source with documentation: *@release-source-with-doc.sh@*
...
17 Jun 2024
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13:51 Feature #1676: txt2tags: include in source distribution?
- minor update: I'm now using txt2tags.py a more recent version that the plain 2.6 I used to have.
I modified my doc/...
13 Jun 2024
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17:51 Design #1744: Implement GBMill (aka Groebner Framework)
- Work in simplifying the code (and comparing with benchmarks):
I removed @myComponent@ and @myLPPForDivwMask@ from ...
12 Jun 2024
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08:12 Feature #1667: GBasis over ZZ: port to CoCoALib
- John Abbott wrote:
> Florian will finish his PhD this summer, and then start a real job. He says he does not need t...
11 Jun 2024
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15:05 Feature #1667: GBasis over ZZ: port to CoCoALib
- Florian will finish his PhD this summer, and then start a real job. He says he does not need to be named as a co-aut...
09 Jun 2024
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21:54 Bug #1705: ProgressReporter: prepare for new loop?
- I have changed the name to *@myReset@* as Anna suggested. I have made the analogous change to *@CpuTimeOut@*, which ...
31 May 2024
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17:07 Feature #1743: Implement Truncated GBases for homogeneous input
- John Abbott wrote:
> Is it worth putting the ex-bug (mentioned in comment 6 above) as a genuine exbug test?
hmmm,... -
09:42 Feature #1743: Implement Truncated GBases for homogeneous input
- Is it worth putting the ex-bug (mentioned in comment 6 above) as a genuine exbug test?
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09:40 Feature #1742: MinGens could be faster
- Could we put here a couple of test cases?
I think the "fancy" phrase is "regression testing": make sure the some fut...
30 May 2024
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17:43 Feature #1819 (In Progress): New functions in CoCoALib using GBasisTrunc: MinSubsetOfGens, IsContainedTrunc, ..
- We have in CoCoA-5
+ MinSubsetOfGens
+ IsContainedTrunc(I,J)
using GBasisTrunc (if homogenous and not(HasGBasis(J)... -
17:38 Bug #1740 (Feedback): MinGens gives non minimal gens *if some deg=0*
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17:22 Bug #1740 (Resolved): MinGens gives non minimal gens *if some deg=0*
- A clever implementation is difficult/impossible.
However, the new @GBasisTrunc@ (which also works for non-negative g... -
11:33 Bug #1740: MinGens gives non minimal gens *if some deg=0*
- This is how the usual MinGens labelling can go horribly wrong with *non-negative* gradings:
S := NewPolyRingWeight... -
17:17 Feature #1743: Implement Truncated GBases for homogeneous input
- There was a bug in GBasisTrunc, now fixed.
These functions are in CoCoA-5. Port them to CoCoALib:
+ MinSubsetOfG... -
11:28 Feature #1742 (Resolved): MinGens could be faster
- Resolved using truncation (works also for non-negative gradings)
28 May 2024
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17:48 Design #1689: Automatic mapping of RHS in += etc
- When we multiply or divide a polynomial by a coefficient, we can use myMulByCoeff/myDivByCoeff.
This is actually che... -
17:41 Design #1689: Automatic mapping of RHS in += etc
- Is this valid now? something along this lines is valid.
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14:39 Design #1744: Implement GBMill (aka Groebner Framework)
- First step would be to kill definitely all the code for the dynamic GBasis.
It is sad to do so, but I have no idea h... -
14:12 Design #1744: Implement GBMill (aka Groebner Framework)
- John Abbott wrote:
> *THIS* could be a good goal for version 1.0. Do we have enough resources to achieve that?
I... -
14:11 Feature #1743: Implement Truncated GBases for homogeneous input
- MinGens now truncates to the max degree of the generators.
Can be considerably faster than before, of course.
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14:09 Feature #1743: Implement Truncated GBases for homogeneous input
- Implemented.
Meanwhile I made a few tiny changes in the direction of the Framework/Mill.
Tested, seems fine.
Now...
27 May 2024
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19:27 Design #1744: Implement GBMill (aka Groebner Framework)
- *THIS* could be a good goal for version 1.0. Do we have enough resources to achieve that?
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16:46 Feature #1743 (In Progress): Implement Truncated GBases for homogeneous input
- One crucial starting point is making a proper constructor for GRingInfo.
Currently the constructor has many argument...
25 May 2024
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02:13 Feature #1667: GBasis over ZZ: port to CoCoALib
- That is the idea. We just have to understand who will be the authors and what should be done before submitting. I bel...
24 May 2024
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16:33 Bug #1740: MinGens gives non minimal gens *if some deg=0*
- While trying to understand how to work around this, I resumed the partial minimalization with the function @MinGens_a...
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14:55 Bug #1705: ProgressReporter: prepare for new loop?
- John Abbott wrote:
> Or *@myRestart@*?
@myReset@ is myFavourite ;-) -
10:13 Bug #1705: ProgressReporter: prepare for new loop?
- Or *@myRestart@*?
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11:53 Feature #1818 (In Progress): Implement FGLM
- Done, together with Evelina Lanteri.
We used LinDepMill and QBGenerator: worked very well.
Still to decide: user in... -
11:47 Feature #1818 (In Progress): Implement FGLM
- Implement FGLM algorithm for 0-dim ideals
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11:45 Feature #937 (Closed): LinDepMill: Mill for linear dependencies
- Many years have passed. This class has been thoroughly used/tested.
It is used in the functions @ShapeLemma@ and @F... -
10:12 Feature #1667: GBasis over ZZ: port to CoCoALib
- John Abbott wrote:
> The CoCoA-5 version is in @*prototype-GBZZ.cpkg5@*.
> I tried just one test, and the CoCoA-5 c... -
09:49 Feature #1778: Homogenizer
- Anna has raised some points to consider (related to the last comment above which creates many poly rings)
* *Qn* eac... -
09:10 Feature #1817 (In Progress): OSCAR/MaRDI JSON interface
- I have made a first throwaway prototype, mostly to learn about the foibles of the OSCAR/MaRDI JSON format.
I am wo... -
09:08 Feature #1817 (In Progress): OSCAR/MaRDI JSON interface
- Build a good first version of an interface for sending/receiving OSCAR/MaRDI JSON serializations of mathematical obje...
23 May 2024
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21:42 Feature #1778: Homogenizer
- Wolfram Decker would like to have a way of handling the rings involved in projective geometry: namely 1 "homogeneous"...
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21:34 Design #1816 (Feedback): printing rings
- I have updated the expected output of 2 @src/tests/@
Thanks for fixing this so quickly!
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16:42 Design #1816: printing rings
- This is fine for me:...
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16:39 Design #1816: printing rings
- Now it prints...
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16:36 Design #1816 (Resolved): printing rings
- Follow up:
Me: no, we don't.
In fact, this highlights there is a different underlying implementation.
This is no... -
16:35 Design #1816 (Feedback): printing rings
- From email by John Abbott:...
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