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With Python 3, before #26931:
```
sage -t src/sage/homology/simplicial_complex.py # 22 doctests failed
sage -t src/sage/homology/examples.py # 7 doctests failed
```
After #26931:
```
sage -t src…
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After a discussion at Sage Days 64, we decided to implement a variety of categories pertaining to geometry and topology to lend assistance to [SageManifolds](http://sagemanifolds.obspm.fr) (#18528) …
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`polyhedral_complex` creates a geometric polyhedral complex corresponding to the triangulation.
`boundary_simplicial_complex` and `boundary_polyhedral_complex` are combinations of `boundary` (which…
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In order to more quickly check if two simplicial complexes are not isomorphic, we should check that their (ordered) facet dimension sequences agree.
We also check that edge labels are respected for…
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We implement graded algebras with maximal finite degree. That is, each generator has a integer degree, and multiplications exceeding a fixed degree yield zero.
This implementation is for example us…
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Sage's CHomP interface is out of date: the executables now have different names and may use a different syntax. Also, CHomP has not been updated recently — the most recent changes at https://github.…
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The boundary of polytopes are nice and relatively well-behaved cell complexes.
When the polytope is simplicial, its boundary is a simplicial complex. This ticket implements a method to return that …
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Sometimes a "bad exit 2" happens on Linux ppc64le due to this:
```c
/* src/saveload.c:127 */
libGAP_UInt1 libGAP_LOAD_BYTE_BUF( void )
{
libGAP_Int ret;
ret = read(libGAP_syBuf[libGAP_LoadFile]…
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Right now, our `generators` are divided into 3 files: `classic`, `uniform`, `nonuniform`.
I see a few disadvantages. In `classic`, I feel like we've started putting everything that's not "purely ra…
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Add functionality so that we can compute a basis for (co)homology in dimension n of a chain complex C_* in terms of a given basis for C_n.
Apply: [attachment: trac_6100-basis_homology-ts.patch](htt…