#17496: Implement a check for formality for hyperplane arrangements
-------------------------------------+-------------------------------------
Reporter: tscrim | Owner: tscrim
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.5
Component: geometry | Resolution:
Keywords: hyperplane | Merged in:
arrangements, formality | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | 56d27553989dc42a9563628e545f08eb874ac15f
public/geometry/formal_hyperplane_arrangements-17496| Stopgaps:
Dependencies: |
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Changes (by tscrim):
* status: new => needs_review
* cc: vbraun, Stefan, chapoton, dperkinson, dimpase (added)
* branch: => public/geometry/formal_hyperplane_arrangements-17496
* keywords: => hyperplane arrangements, formality
* commit: => 56d27553989dc42a9563628e545f08eb874ac15f
Old description:
> Implement methods of hyperplane arrangement to determine which k a
> hyperplane arrangement is k-generated and formality of the arrangement.
New description:
Implement methods of hyperplane arrangements to construct the matroid of
an arrangement, determine the minimal `k` such that an arrangement is
`k`-generated, and formality of an arrangement.
--
Comment:
I called the method to determine the minimal `k`
`minimal_generated_number`, but I'm not sure this is the best name, so
suggestions welcomed.
----
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=924d341abe2f85b95031ee9c6169cea69cad39e4
924d341]||{{{Added check for formality, k-generated, and matroid
methods.}}}||
||[http://git.sagemath.org/sage.git/commit/?id=56d27553989dc42a9563628e545f08eb874ac15f
56d2755]||{{{Some cleanup.}}}||
--
Ticket URL: <http://trac.sagemath.org/ticket/17496#comment:1>
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