Opened 4 years ago
Closed 4 years ago
#24849 closed enhancement (fixed)
Implement (sub)direct sums of polytopes
Reported by: | jipilab | Owned by: | |
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Priority: | major | Milestone: | sage-8.3 |
Component: | geometry | Keywords: | days93, polytope |
Cc: | vdelecroix, moritz, mkoeppe, chapoton | Merged in: | |
Authors: | Jean-Philippe Labbé | Reviewers: | Frédéric Chapoton |
Report Upstream: | N/A | Work issues: | |
Branch: | ffe21e2 (Commits, GitHub, GitLab) | Commit: | ffe21e24d56b3508d32e3c63e35bd66a7b042b89 |
Dependencies: | #24848, #22572 | Stopgaps: |
Description (last modified by )
From https://www.csun.edu/~ctoth/Handbook/chap15.pdf:
The (d+d)-dimensional polytope P⊕Q:=conv({(p,0)∈R(d+d')|p∈P}∪{(0,p')∈R(d+d')|q∈Q}). Thus the subdirect sum P⊕Q is a projection of the join P∗Q. The join is implemented in #24848.
Change History (12)
comment:1 Changed 4 years ago by
- Branch set to u/jipilab/24849
- Commit set to 6eb082501f7fee5e1fe659411ba4028c8a978beb
- Dependencies set to #24848, #22572
- Description modified (diff)
comment:2 Changed 4 years ago by
- Commit changed from 6eb082501f7fee5e1fe659411ba4028c8a978beb to b06397557db3de35303736e79faef44d07076ee9
Branch pushed to git repo; I updated commit sha1. New commits:
b063975 | typo
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comment:3 Changed 4 years ago by
- Status changed from new to needs_review
comment:4 Changed 4 years ago by
- Commit changed from b06397557db3de35303736e79faef44d07076ee9 to d0242f35e449ee63320eb52bddc285d47363625c
Branch pushed to git repo; I updated commit sha1. New commits:
d0242f3 | removed translation from direct sum
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comment:5 Changed 4 years ago by
- Commit changed from d0242f35e449ee63320eb52bddc285d47363625c to 0295def9ab8b166e553895c8e34d1d13a2104641
Branch pushed to git repo; I updated commit sha1. New commits:
0295def | whitespaces
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comment:6 Changed 4 years ago by
- Commit changed from 0295def9ab8b166e553895c8e34d1d13a2104641 to 2457e9791c41ba408fee5295053cfb64f814b2a2
Branch pushed to git repo; I updated commit sha1. New commits:
2457e97 | Conventions in docstring
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comment:7 Changed 4 years ago by
- Commit changed from 2457e9791c41ba408fee5295053cfb64f814b2a2 to a1aabfa56ffc0694033e3c5c8653b6b87ba8f889
comment:8 Changed 4 years ago by
if the Author field is empty, no patchbot will look at the ticket..
comment:10 Changed 4 years ago by
- Commit changed from a1aabfa56ffc0694033e3c5c8653b6b87ba8f889 to ffe21e24d56b3508d32e3c63e35bd66a7b042b89
Branch pushed to git repo; I updated commit sha1. New commits:
ffe21e2 | Merge branch 'sage8.2.b7' into 24849
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comment:11 Changed 4 years ago by
- Milestone changed from sage-8.2 to sage-8.3
- Reviewers set to Frédéric Chapoton
- Status changed from needs_review to positive_review
ok, let it be
comment:12 Changed 4 years ago by
- Branch changed from u/jipilab/24849 to ffe21e24d56b3508d32e3c63e35bd66a7b042b89
- Resolution set to fixed
- Status changed from positive_review to closed
New commits:
first version of (sub)direct sum