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add parameter immutable to graph generators in smallgraphs.py (part 3)#41507

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vbraun merged 1 commit intosagemath:developfrom
dcoudert:graphs/immutable_in_smallgraph_3
Feb 1, 2026
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add parameter immutable to graph generators in smallgraphs.py (part 3)#41507
vbraun merged 1 commit intosagemath:developfrom
dcoudert:graphs/immutable_in_smallgraph_3

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Following discussions in #39177, we add the option to return immutable graphs to some generators in src/sage/graphs/generators/smallgraphs.py.

  • CoxeterGraph, CubeplexGraph, DejterGraph, DyckGraph, EllinghamHorton54Graph, EllinghamHorton78Graph

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  • The title is concise and informative.
  • The description explains in detail what this PR is about.
  • I have linked a relevant issue or discussion.
  • I have created tests covering the changes.
  • I have updated the documentation and checked the documentation preview.

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Documentation preview for this PR (built with commit 43bfe3d; changes) is ready! 🎉
This preview will update shortly after each push to this PR.

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@mantepse mantepse left a comment

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thank you!

vbraun pushed a commit to vbraun/sage that referenced this pull request Jan 30, 2026
sagemathgh-41507: add parameter immutable to graph generators in `smallgraphs.py` (part 3)
    
Following discussions in sagemath#39177, we add the option to return immutable
graphs to some generators in
`src/sage/graphs/generators/smallgraphs.py`.
- `CoxeterGraph`, `CubeplexGraph`, `DejterGraph`, `DyckGraph`,
`EllinghamHorton54Graph`, `EllinghamHorton78Graph`


### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#41507
Reported by: David Coudert
Reviewer(s): Martin Rubey
@vbraun vbraun merged commit 4ecd808 into sagemath:develop Feb 1, 2026
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3 participants