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The `.interior_product()` method of an `ExteriorAlgebra` element doesn't return the correct basis (a `tuple` rather than a `FrozenBitset`).
```
sage: E = ExteriorAlgebra(SR,'e',3)
sage: E.inject_va…
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The tool 2to3 changes the code to the new Py3 syntax.
But the code has to depend on the Python version!
There are 30 affected modules.
This ticket is tracked as a dependency of meta-ticket tic…
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Hello, me again. I noticed that the `basegrade` function is in the docs, but it's not actually exported in the package. Is there a reason behind it? I'm using the `basegrade` function, so having it e…
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The `norm` function is giving an error because `norm_sqr` is returning a negative value. Here is the case:
```julia
cl = CliffordAlgebra(:CGA2D)
mv = -4.0×e1e₊-4.0×e2e₊-4.0×e1e₋+4.0×e₋e2-2.0×e…
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Since the `full_output.txt` files generated by the notebook are often changed, the client web browser should always ask for a new version instead of retrieving a cached version.
We need to add the …
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Yangians can be seen as a deformation of U(**gl**[t]) and have many interesting connections to representation theory. See http://en.wikipedia.org/wiki/Yangian.
Depends on #23266
Depends on #23267
D…
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Improve the error analysis for the implementation of Dobinski's formula to compute the Bell numbers leading to
1. code which is actually consistent with the mathematical formulas
2. code which is c…
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Improvements to the root systems plotting which will plot crystals automatically in a few different formats, as well as LS paths as paths in the root system.
CC: @sagetrac-sage-combinat @nthiery @…
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using the short syntax `super()`
CC: @tscrim @kwankyu @slel
Component: **refactoring**
Author: **Frédéric Chapoton**
Branch/Commit: **[`3c729e3`](https://github.com/sagemath/sagetrac-mirror/com…
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In this ticket, we equip the category of chain complexes with a method `homology` yielding the associated homology. The corresponding homology functor will use this method.
This happens in view of …