cone for a ComplexMap of nonzero degree
Nobody has claimed this yet.
- Dominant language
- Macaulay2
- Stars
- 435
- Forks
- 297
- Avg merge
- 4d 20h
- Merged PRs (30d)
- 11
Description
There's a comment above `cone(ComplexMap)` saying:
https://github.com/Macaulay2/M2/blob/b1b46da3411804b7b0e3ac07bfa8b7357d242421/M2/Macaulay2/packages/Complexes/ChainComplexMap.m2#L857-L860
@ggsmith @mikestillman I went back and forth between whether this is what I need or not, and I think it is actually what I need. In particular, taking cone of a map f of nonzero degree isn't the same as cone of `map(target f, (source f)[-degree f], i -> f_(i-degree f))`, is it?
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the comment above cone(ComplexMap) in M2/Macaulay2/packages/Complexes/ChainComplexMap.m2 around lines 857-860. Compare the documented behavior with cones of maps having nonzero degree and determine the intended semantics before identifying the needed change and corresponding regression coverage.
Written by the indexing model from the issue text.
Assessment
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100