Opened 9 years ago
Closed 9 years ago
#7671 closed enhancement (fixed)
strongly_connected_components in c_graphs
Reported by: | ncohen | Owned by: | rlm |
---|---|---|---|
Priority: | major | Milestone: | sage-4.3.4 |
Component: | graph theory | Keywords: | |
Cc: | Merged in: | sage-4.3.4.alpha0 | |
Authors: | Nathann Cohen | Reviewers: | Robert Miller |
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
The function strongly_connected_components uses Networkx for the moment. As c_graphs are to become the standard implementation of graphs in Sage, this function should be rewritten in Cython.
This functions should be able to return two types of data :
- A list of lists : as the function connected_components
- A digraph whose vertices are [immutable Sets representing a set of vertices defining a strongly connected components] and such that there is an edge between A and B if there is an arc from one vertex of A to one vertex of B.
This because, the graph strongly connected components is acyclic, which is sometimes useful.
Nathann
Attachments (1)
Change History (8)
comment:1 Changed 9 years ago by
- Description modified (diff)
comment:2 Changed 9 years ago by
- Description modified (diff)
comment:3 Changed 9 years ago by
- Status changed from new to needs_review
comment:4 Changed 9 years ago by
Typo: "conaitning"
comment:5 Changed 9 years ago by
- Reviewers set to Robert Miller
- Status changed from needs_review to positive_review
All tests pass. Works for me, if the typo gets fixed
Changed 9 years ago by
comment:6 Changed 9 years ago by
Done !
comment:7 Changed 9 years ago by
- Merged in set to sage-4.3.4.alpha0
- Resolution set to fixed
- Status changed from positive_review to closed
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Done here, with small other things :-)
Nathann