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This patch adds toric (QQ-Weil) divisors. Characteristic classes of associated sheaves as well as computation of the sheaf cohomology groups is implemented.
See tracker bug at #9604 to for the patc…
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Usual reasons (working on an u-to-date R is a prerequisite to get answers from the R Core Team on r-help...)
The new upstream version has been released almost a month ago.
Upstream tarball : [http…
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I've noticed that there are inextricable connections between the group homology and Smith Normal Form. But I did not have a clear understanding of this issue. I wonder if HAP package has some function…
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This implies a lot of modifications in graph_backends.py to respect the new API.
Updated spkg is at
http://sage.math.washington.edu/home/mvngu/spkg/standard/networkx/networkx-1.0.1.spkg
Apply onl…
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**Tarball**: https://www.python.org/ftp/python/2.7.13/Python-2.7.13.tgz
Note: upgrade to Python 2.7.12 done in #19735.
CC: @simon-king-jena @hivert @slel @EmmanuelCharpentier
Component: **packag…
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`clang++` refuses to guess the correct `return` statement. Also, `delete[]` must not be mixed up with `delete`. This ticket fixes these issues, and allows #22679 to go forward.
The tarball at http:…
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The unique representation of homsets is taken care of by ``Hom``. What's missing is:
- Fast hash and comparison by id. This can be implemented by having Homset inherit from WithEqualityById
- Pick…
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This ticket is used to keep track of the progress towards python3.
**As this ticket is too long, final steps are moved to #28298**
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This is a prerequisite for #28197 - ipython does no longer honor the DICT_IS_ORDERED variable since 7.10 [1].
[1] https://github.com/ipython/ipython/commit/dffa2c33dea3ecc09256a66a6ddbc876ce0629a9
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The symbolic product is currently broken in Sage :
* It cannot be created in Sage :
```
sage: var("j,p", domain="integer")
sage: X,Y=function("X,Y")
sage: prod(X(j),j,1,p)
-------------------------…