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### Problem
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I am trying to implement Edelsbrunner's Algorithm for the alpha shape of a 3D point cloud in python as presented in [this SO post][1]. However, I'm having trouble plotting result…
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I aim to write some classes to implement free groups, finitely presented groups and braid groups. Mostly it would consist in wrapping gap functions, so maybe it would need to be rewritten in the fut…
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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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Example: https://mila.quebec/en/publications/
It would be nice to reuse the same code as in the Mila website. Not sure if that's 'easily' possible via RTD
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This ticket implements:
- inverses for morphisms of finite dimensional vector spaces
- tensor products of morphisms
and improves:
- triangular morphisms over base rings
Declares CombinatorialFreeMo…
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As you can see it passed three days ago: https://travis-ci.org/gap-infra/gap-docker-pkg-tests-master/jobs/571642135 but now fails: https://travis-ci.org/gap-infra/gap-docker-pkg-tests-master/jobs/5725…
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In the study of simplicial complexes the concepts of star and link are often used.
They should be implemented in a proper way (i.e. designed and documented).
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```python
>>> import gudhi
>>> gudhi.AlphaComplex(points=[[1.,0.,0.]]).create_simplex_tree()
Alpha_complex_3d create_complex - no triangulation as points are on a 2d plane
```
But it does produ…
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https://github.com/oscar-system/Oscar.jl/blob/5fa3a5c7e538f11eca4972202ff88572cc18d128/src/ToricVarieties/NormalToricVarieties/attributes.jl#L73-L75
to be compared with:
https://github.com/oscar…
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this would fix some bugs, e.g. as reported [here](https://groups.google.com/d/msg/sage-support/OJAN4pk4dwQ/FJRxra67EbwJ).
* get Maxima 5.39.0 tarball [here](https://sourceforge.net/projects/maxima/…