-
I propose to add to the list of simplicial complexes the minimal triangulation of the K3 surface, which has 16 vertices and 288 facets.
```
sage: simplicial_complexes.K3_surface()
Simplicial comple…
-
Simplicial complexes were lacking a method to test Cohen-Macaulayness.
In order to implement this method, some other methods are improved, namely a hash function is implemented, and _enlarge_subcom…
-
This question https://stackoverflow.com/questions/14106121/efficient-algorithm-for-finding-all-maximal-subsets contains an answer with an efficient python-coded solution. We might want to incorporate …
-
This ticket provides the star and the stellar subdivision of a face of a simplicial complex.
The star of a face is the union of the faces that contains that face. The star of the empty face is the …
-
The `add_face` method currently deletes the `__enlarged` cache, but this is unnecessary.
CC: @tscrim
Component: **algebraic topology**
Keywords: **days74**
Author: **John Palmieri**
Branch/Com…
-
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…
-
The attached patch adds lots of functionality to Sage's algebraic topology capabilities:
- it implements cubical complexes: complexes constructed from cubes of various dimensions, glued together in…
-
This patch adds more examples of simplicial complexes: real projective spaces (that is, RPd for any positive d), CP2, and the Poincare homology sphere. Some of these are the minimal triangulations,…
-
There exists a conjectural triangulation of the projective plane over the ring of quaternions, with 15 vertices and 490 facets. This patch implements that as a simplicial complex.
Apply only [attac…
-
Add functionality to sage to compute the effect of a simplicial complex morphism on homology and cohomology.
This patch will rely on fuctionality in #6099, #6100, #6102, and #5882.
Depends on #191…