-
The main changes here: use `n_cells` instead of `n_faces` throughout the simplicial complex code, and then sort `n_cells`. This way, it is easy to understand the indexing of the matrices defining th…
-
Added functionality for shifted simplicial complexes and Rudin's and Ziegler's nonshellable 3-balls.
Depends on #20732
Component: **algebraic topology**
Keywords: **simplicial complex, days74**
…
-
In recent tests, using pari is faster than Sage's current default algorithm for computing homology groups of chain complexes. For example:
```
sage: %timeit simplicial_complexes.RandomComplex(12, 4…
-
This is an implementation of Hochschild (co)homology as a first approach to work with implementing infinite chain complexes.
Depends on #19609
Depends on #19613
Depends on #19608
Depends on #20229
…
-
It would be nice to have the cup product available for arbitrary cochains, without involving `homology_vector_space_with_basis`. Of course its not well-defined on the level of cochains, but at least…
-
We seem to have a common bug for all of our visualizations. I am getting the following error in the console.
```
Uncaught TypeError: Cannot read property 'offsetLeft' of null
```
-
Is anyone working with graph edit distance? https://en.wikipedia.org/wiki/Graph_edit_distance
Where should this function go in the project tree? Can I create a new file in the source directory for di…
-
`algebraic_topological_model.py` contains help classes and functions for computing (co)homology of simplicial complexes; in particular, the cup product for the cohomology ring. As such, it contains …
-
-
CC: @tscrim @fchapoton
Component: **combinatorics**
Keywords: **subword complex**
Author: **Christian Stump**
Branch/Commit: **[`e8ad2a9`](https://github.com/sagemath/sagetrac-mirror/commit/e…